APA PsycExtra® Database Guide | ||||||||||
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Database guide last Copyright 2023, |
APA PsycExtra® is a gray literature database relating to psychology, behavioral sciences, and health. Full-text is available for the majority of records (approximately 70% and growing), in addition to a complete abstract record. Coverage consists primarily of material written for professionals but disseminated outside of peer-reviewed journals. For list of the many organizations that contribute materials to APA PsycExtra®, please view the Content Providers List. The database contains publications such as technical and government reports, conference papers, newsletters, magazines, videos, press releases, and consumer brochures. For current information, including number of records in the database, update information, languages/countries represented, etc., please view the APA PsycExtra® Fact Sheet. This database can be searched several ways, including by content owner, keywords, or by author names and publication titles. There is no overlap between APA PsycExtra® and APA PsycInfo®. For more information, please contact the APA PsycExtra® Department at the American Psychological Assocation. The APA PsycExtra® Department can be contacted by phone at (800) 374-2744 (in North America). Phones are answered 8:30 a.m. to 5:00 p.m. (Eastern Standard Time), Monday through Friday. The APA PsycExtra® Department can also be contacted by email at [email protected] , or visit us at our website, http://www.apa.org/PsycExtra. APA PsycExtra® is produced and copyrighted (c) by the American Psychological Association, all rights reserved.
The limit of databases that you can select for a multifile search session is based upon database segments rather than actual databases. The Ovid multifile segment limit is set at 120 to avoid impacting your search sessions. This database includes 1 segment. This database is updated online bi-weekly. |
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AB | Abstract [Word Indexed]
macdonald.ab. |
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The Abstract (AB) field contains a description of the content of the document or article and is a summary of its contents. The abstract index contains all searchable words from the abstract. A Related UID link displays in this field when available. |
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AF | All Searchable Fields [Search Alias]
Incentives.af. |
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All Fields (AF) is an alias for all of the fields which occur in the source documents, including value-added fields such as Subject Headings (SH). |
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AG | Age Group [Phrase Indexed] adulthood 18 yrs older.ag. "100".ag. |
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The Age Group (AG) field contains a standardized description of specific age groups related to the content of the document. The results are displayed in the Age Group (AG) field. A record may contain multiple Age Groups.
Both the code and the term are searchable, such as 100.ag. or childhood birth 12 yrs.ag. Age Groups are also available as limits. |
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AM | In Association With [Word Indexed] television.am. |
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The In Association With (AM) field refers to the organization or individual who assists in producing the digital and video content available for distribution. |
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AN | Accession Number [Phrase Indexed] 718882007-001.an. 718882007 001.an. |
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The Accession Number (AN) field appears in every record, and uniquely identifies the record. You can retrieve any specific record in the database with its accession number. It contains 12 numeric characters with hyphens in the NNNNNYYYY-LLL format, structured as follows:
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AU | Author [Phrase Indexed] sachs$.au |
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The Author (AU) field contains the names of individual persons responsible for creation of the work represented by the record. If all authors are not included, the last name listed is followed by "et al." The author names are entered into the index as they appeared in the original document, in the format of last name followed by first and middle names or up to two initials. Thus, a person named "James C. Smith" may appear as "Smith James C," "Smith J Charles," "Smith, JC" or "Smith J" Enter the last name, or if it is a common name, enter the last name, a space, and the first initial. If you are unsure of the spelling, view the index to see all versions and spellings of the name. See Display and Browse Field Indexes in the Ovid Help for details on viewing and using a field index. Patronymic suffixes, such as Jr., Sr., III, and so on, are included for display, but are not indexed, as are non-author roles, which include:
If no role is present, the role may be assumed to be "author". Data in the author field may also comprise one or more of the following special cases:
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AW | Awards [Word Indexed] journalism.aw. |
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The Awards (AW) field identifies the awards that the video or digital content has received. |
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CA | Corporate/Institutional Author [Word Indexed] national research council.ca. |
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The Corporate/Institutional Author (CA) field contains the corporation or institution of the authors or editors as well as the department, sub-departments and location. If all corporate authors are not included, "et al." will appear after the last one. |
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CB | Corporate/Institutional Author Role [Word Indexed] producer.cb. |
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The Corporate/Institutional Author Role (CB) field contains the corporation or institution authors role, such as:
Corporate/Institutional Author Role is displayed as part of the Corporate/Institutional Author (CA) field. |
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CC | Classification Code [Phrase Indexed] "2223".cc. "222".cc. "22".cc. |
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The Classification Codes (CC) field includes 4-digit numbers representing broad subject categories, such as "Learning and Motivation" or "Linguistics, Language and Speech." Searching with Classification Codes is a convenient way to limit an existing subject search to a particular setting (such as treatment, education, and so on) or area. The numerical Classification Codes are stored in the index. To view and select from the hierarchical list of codes and their scope notes, use the Classification Codes tool. |
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CF | Conference Information [Word Indexed] apa.cf. |
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The Conference Information (CF) field contains the name, number, date and location of a conference at which the content of the document was presented. Individual words are posted in the Conference Information index. Standard abbreviations are used for the institutional and geographical portions of the field, such as:
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CH | Correction Date [Phrase Indexed] 20071126.ch. |
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The Correction Date (CH) field appears in corrected records and contains the date the record was revised. |
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CO | Content Owner [Word Indexed] denver.co. |
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The Content Owner (CO) field consists of the organization or individual who produces, owns, or has rights to the content. |
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CT | Content Owner Type [Phrase Indexed] |
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The Content Owner Type (CT) field refers to the organization or individual who produces, owns, distributes, or has rights to the content. Content Owner Type (CT) include:
Both the code and the term are searchable, such as 1000.ct. or "Association/Society".ct. Content Types are also available as limits. |
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CW | Classification Code Word [Word Indexed] vocational.cw. |
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You may wish to retrieve every Classification Code that includes a particular word or words. This is done by searching the desired word(s) in the Classification Codes Word (CW) field. |
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DD | Document ID [Display only] |
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The Document Identifier (DD) field contains the ID number of a certain Document Type (DT). This field displays in the Document Type (DT) field when available. |
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DI | Distributor [Word Indexed] zurich.di. |
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The Distributor (DI) field consists of the organization or individual responsible for making digital and video content available. |
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DO | Digital Object Identifier [Phrase Indexed] 10 1037 e300002005 045.do. |
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The Digital Object Identifier (DO) field contains the registered DOI for electronic documents. These DOIs may contain full text access. |
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DP | Publication Date [Word Indexed] 2011.dp. |
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The Publication Date (DP) field contains the date the documents was published, which may include month or season, day, and year. |
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DT | Document Type [Phrase Indexed] report administrative.dt. monograph.dt. |
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The Document Type (DT) field identifies the specific kind of document, and explains what a document is as opposed to what it is about. Some documents contain a Document Identifier (DD) when available.
Document Types are also available as limits. |
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GS | Grant/Sponsorship [Word Indexed] National.gs. |
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The Grant/Sponsorship (GS) field identifies the sponsor names, grant/contract/award information, funding amounts, funding dates, and other details about the sponsorship for the record. |
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HW | Heading Word [Word Indexed] counseling.hw. academic achievement.hw. |
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The Heading Word (HW) index allows you to retrieve every subject heading that includes a particular word by searching a single word in the Subject Heading (SH) field. You can also search these terms using the Permuted Index tool. |
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IA | Intended Audience [Phrase Indexed] general public.ia. psychology professional research.ia. |
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The Intended Audience (IA) field identifies the intended audience of the video or digital content. Intended Audience terms include:
Intended Audience is also available as a limit. |
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IB | ISBN [Word Indexed] "9781844789122".ib. |
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The ISBN (IB) field contains the International Standard Book Number (ISBN), and any qualifying text in parentheses. The qualifying text denotes binding type, volume number(s), publisher and/or the publisher location for which the ISBN was assigned. The ISBN appears as a number separated by hyphens. Its purpose is to identify uniquely a book title, an edition of a book, or a monograph produced by a specific publisher. Each ISBN number contains the following parts:
However, despite this standard format, ISBNs vary enormously on the source documents. Consequently, they have also been put into the index without spaces or dashes.
You may search the ISBN with or without hyphens. |
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ID | Keywords [Word Indexed] bipolar.id. psychosis.id. |
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The Keywords (ID) field contains concise, uncontrolled, key concepts that describe the content of the document. Indexers use Keywords to supplement Subject Headings (SH). |
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IN | Institution/Affiliation [Word Indexed] harvard.in. tufts.in. |
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The Institution/Affiliation (IN) field contains the author's name along with their affiliation, if indicated in the source document. Institutions which are commonly known by initials (IBM, NIMH, WHO, INSERM) may be listed in initialed form in some records and are spelled out in others. State and Province names must be searched by both spelled-out name and postal abbreviation to capture all results. Country names (except USA and USSR) are spelled out. |
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IP | Issue/Part [Word Indexed] "9".ip. |
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The Issue/Part (IP) field contains the issue or part for a particular volume of a document. This field displays as part of the Source (SO) field. |
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IS | ISSN [Phrase Indexed] 1555 2284.is. "1555-2284".is. |
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The ISSN (IS) field contains the International Standard Serial Number (ISSN) for the print journal in which an article was published. It appears as a number separated by a hyphen. To search the index, include hyphens, such as 1000-958X. |
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KI | Key Participants [Word Indexed] william.ki. |
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The Key Participants (KI) field contains the names of all individual persons who participated in the media content. |
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LG | Language [Phrase Indexed] English.lg. |
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The Language (LG) field contains the document's language(s) of publication. |
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LH | Locally Held [Display only] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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The Locally Held (LH) field indicates (with a "Y" for "Yes" or an "N" for "No") if a journal is held at your library or institution. This information is designated by your OVID System Administrator. |
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LM | Local Messages [Display only] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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The Local Messages (LM) field contains messages created by your Ovid System administrator to indicate holdings information about journals held in your library or institution. |
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LO | Location [Phrase Indexed] norway.lo. |
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The Location (LO) field contains a standardized description of population locations, specifically country names, related to the content of the document. The field may contain multiple Population Locations. |
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MA | E-Mail Address [Phrase Indexed] "zacks: [email protected]".ma. |
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The E-Mail Address (MA) field contains the email addresses of the persons responsible for the work represented by the record. |
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MT | Media Type [Word Indexed] video.mt. |
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Media Type (MT) field identifies the physical medium of the item(s) that are available. Media Type is also available as a limit. |
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NA | Narrator [Phrase Indexed] sally field.na. |
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The Narrator (NA) field identifies the person who narrates the media content, such as the narrator of a video. |
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NT | Notes [Word Indexed] kaiser.nt. |
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The Notes (NT) field contains miscellaneous information about the video or digital content. |
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OT | Original Title [Word Indexed] varierande.ot. |
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The Original Title (OT) field contains the original non-English title. |
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PB | Publisher [Word Indexed] zoology.pb. |
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The Publisher (PB) field contains the name of the content publisher and displayes as part of the Source (SO) field. |
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PF | PDF Full Text [Phrase Indexed] "718882007 001pdf".pf. |
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The PDF Full Text (PF) field contains a complete list of all PDFs available in APA PsycExtra® database. |
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PG | Pagination [Word Indexed] "9".pg. |
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The Pagination (PG) field consists of the inclusive pagination of a document. You can only search for the initial page, but the full page range displays as part of the Source (SO) field. If the Source field is not present, available Pagination information displays in the Pagination field. |
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PO | Population Group [Word Indexed] human.po. |
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The Population Group (PO) field contains terms describing the subject population of the document. Population Group codes and terms include:
Both the code and the term are searchable. Population Groups are also available as limits. |
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RA | Related UID [Phrase Indexed] 308932004 010.ra. |
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The Related UID (RA) field indicates the Unique Identifier (AN) of the related reference article. A link at the end of the Abstract (AB) field will appear if a Related UID (RA) is available. |
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RU | Running Time [Word Indexed] "20".ru |
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The Running Time (RU) field specifies the length of time that the media source runs. |
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SH | Subject Heading [Phrase Indexed] sadness.sh. |
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The Subject Headings (SH) field contains the Subject Headings (also known as "descriptors" or "index terms") from the American Psychological Association's Thesaurus of Psychological Index Terms. Indexers at the APA use the terms to describe the topic or content of a document. You can look up any of these terms by using the pull-down Thesaurus tool. Subject Headings are entered into the index as phrases and should be searched exactly as they appear in the thesaurus. |
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SO | Source [Display Only] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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The Source (SO) field includes all the basic information needed to locate a citation, including:
The Source will appear in any record where the document type is Newsletter, Newspaper, or Magazine. |
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ST | Series Title [Word Indexed] youth.st. |
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The Series Title (ST) contains the series title of video records. |
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TD | Test DOI [Word Indexed] 10 1037 t00072 000.td. |
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The Test DOI (TD) field contains the active link from APA PsycExtra® to APA PsycTests®. The link will only work with access to the APA PsycTests® database. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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TI | Title [Word Indexed] jackson.ti. |
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The Title (TI) field contains the English-language title of the document. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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TM | Tests and Measures [Word Indexed] adaptive.tm. |
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The Tests & Measures (TM) field identifies the names of tests and measures mentioned in the source document. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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UP | Update Code [Phrase Indexed] 20051018.up. |
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The Update Code (UP) field appears in all records and contains the date the record was released into the database. It is sometimes referred to as "Released Date." The field consists of 8 digits, in YYYYMMDD format, where YYYY is the release year, MM is the release month, and DD is the release day. The Correction Date (CH) has a separate display. |
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VO | Volume [Phrase Indexed] "9".vo. |
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The Volume (VO) field consists of the volume of a serial publication. This field displays as part of the Source (SO) field. |
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XH | Catalog Holdings [Display Only] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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The Catalog Holdings (XH) field indicates (with a "Y" or an "N") if a journal is held locally. |
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YR | Year of Publication [Phrase Indexed] "2008".yr. |
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The Year of Publication (YR) field contains the year in which a document was published. The year may be searched using four digits, such as 1994. Only individual years may be searched. Use the Limit to Publication Year to restrict sets to a range of years. This field displays as part of the Source (SO) field. |
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Advanced Searching | |||
You can use special search syntax listed below to combine search terms or strategically develop a search. Full documentation is provided in the Advanced Searching Techniques section of the Online Help. | |||
Operator | Syntax | Search Example | Sample Results |
OR | x or y | bipolar or mania | "In some respects the patient's mood and actions were similar to the pathologic elations observed in episodes of mania and hypomania among psychotics and neurotics" |
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The OR operator retrieves records that contain any or all of the search terms. For example, the search heart attack or myocardial infarction retrieves results that contain the terms heart attack, myocardial infarction or both terms; results are all inclusive. You can use the OR operator in both unqualified searches and searches applied to a specific field. | ||
AND | x and y | schizophrenia and diet | "There seem to be only two types of behavioral disorders that are responsive to dietary intervention--depression and ADHD." |
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The AND operator retrieves only those records that include all of the search terms. For example, the search blood pressure and stroke retrieves results that contain the term blood pressure and the term stroke together in the same record; results are exclusive of records that do not contain both of these terms. You can use the AND operator in both unqualified searches and searches applied to a specific field. | ||
NOT | x not y | depression not bipolar | "Constructs for a Theory of Reactive Depression." |
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The NOT operator retrieves records that contain the first search term and excludes the second search term. For example, the search health reform not health maintenance organizations retrieves only those records that contain the term health reform but excludes the term health maintenance organizations. In this way, you can use the NOT operator to restrict results to a specific topic. You can use the NOT operator in both unqualified searches and searches applied to a specific field. |
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Adjacency (ADJ) | x y | bipolar depression | "mechanisms of action; clinical indications; unipolar major depression; bipolar depression; dysthymia" |
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The Adjacent operator (ADJ) retrieves records with search terms next to each other in that specific order. You do not need to separate search terms manually by inserting ADJ between them, because when you separate terms with a space on the command line, Ovid automatically searches for the terms adjacent to one another. For example, the search blood pressure is identical to the search blood adj pressure. | ||
Defined Adjacency (ADJn) | x ADJn y | bipolar adj3 depression | "The New York High-Risk Project (NYHRP) is a multitrait, multimeasurement prospective study, in which 2 independent samples of offspring of schizophrenic, affectively ill (those with major depression or bipolar 1 disorder), and psychiatrically normal parents have been followed from mid-childhood to midadulthood." |
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The defined adjacency operator (ADJn) retrieves records that contain search terms within a specified number (n-1) of words from each other in any order (stop-words included). To use the adjacency operator, separate your search terms with ADJ and a number from 1 to 99 as explained below: ADJ1 Next to each other, in any order ADJ2 Next to each other, in any order, up to 1 word in between ADJ3 Next to each other, in any order, up to 2 words in between ADJ99 Next to each other, in any order, up to 98 words in between For example, the search physician adj5 relationship retrieves records that contain the words physician and relationship with a maximum of four words in between in either direction. This particular search retrieves records containing such phrases as physician patient relationship, patient physician relationship, or relationship between cancer patient and physician. Please note Ovid’s order of operation handles terms within parentheses first. Therefore it is recommended to apply the ADJn operator in one-on-one operations to avoid missing out on results. E.g. stroke adj4 (blood pressure or high blood pressure) could potentially miss out on some combinations of stroke with high blood pressure. The optimum way to execute this on Ovid is: (stroke adj4 blood pressure) OR (stroke adj4 high blood pressure). |
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Frequency (FREQ) | x.ab./FREQ=n | depression.ab. /freq=5 | "Anaclitic and introjective depression are characterized by different impairments of cognitive schemas as well as by different symptoms and different qualities of interpersonal relatedness." |
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The frequency operator (FREQ) lets you specify a threshold of occurrence of a term in the records retrieved from your search. Records containing your search term are retrieved only if the term occurs at least the specified (n) number of times. In general, records that contain many instances of your search term are more relevant than records that contain fewer instances. The frequency operator is particularly useful when searching a text field, such as Abstract or Full Text, for a common word or phrase. | ||
Unlimited Truncation ($) | x$ | rat$ | "To estimate the rates of SMBG and to track the progress of states during 1997-2006, CDC analyzed data from the Behavioral Risk Factor Surveillance System (BRFSS) for that period." |
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Unlimited truncation retrieves all possible suffix variations of the root word indicated. To apply unlimited truncation to a term, type the root word or phrase followed by either of the truncation characters: $ (dollar sign) or * (asterisk). For example, in the truncated search disease*, Ovid retrieves the word disease as well as the words diseases, diseased, and more. | ||
Limited Truncation ($) | x$n | dog$1 | "The inhibitory type of nervous systems in the dog." |
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Limited truncation specifies a maximum number of characters that may follow the root word or phrase. For example, the truncated search dog$1 retrieves results with the words dog and dogs; but it does not retrieve results with the word dogma. | ||
Mandated Wildcard (#) | xx#y | wom#n | "The principal reason for adopting such a procedure is that it avoids the necessity of separate norms for men and women." |
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Searching with a mandated wildcard retrieves all possible variations of a word in which the wildcard is present in the specified place. You can use it at the end of a term to limit results to only those that contain the word plus the mandated character. For example, the search dog# retrieves results that contain the word dogs, but not those that contain the word dog, effectively limiting results to only those that contain the plural form of the word. The mandated wild card character (#) is also useful for retrieving specialized plural forms of a word. For example, the search wom#n retrieves results that contain both woman and women. You can use multiple wild cards in a single query word. | ||
Optional Wildcard (?) | xx?y | colo?r | "The psychologist's effort at classifying intelligence is more what the layman does when he tries to distinguish colors of the rainbow." |
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The optional wild card character (?) can be used within or at the end of a search term to substitute for one or no characters. This wild card is useful for retrieving documents with British and American word variants since it specifies that you want retrieval whether or not the extra character is present. For example, the optional wild card search colo?r retrieves results that contain the words color or colour. You can use multiple wild cards in a single query word. | ||
Literal String ("") | "x / y" |
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"go/no-go signal detection, two-alternative, forced-choice localization, adult-infant differences, otitis media and infant absolute thresholds, inattention and infant thresholds" |
"n" | "3".vo | "The law and public policy. (pp. 3-12)." |
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Quotation marks can be used to retrieve records that contain literal strings, when the string includes special characters, such as a forward slash (/). Quotation marks can also be used to retrieve records that contain numbers that may otherwise be confused for earlier searches. In the example, a search for 3.vo would limit the string from your third search in your search history to the volume field. By including the number in quotation marks, the search will retrieve documents with a 3 in the volume number. |
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Stopwords |
The Ovid search engine applies so called "run-time stopword processing". This means the search engine on the fly ignores the stopwords: and, as, by, for, from, in, is, of, on, that, the, this, to, was, were & with. Therefore a search: at risk for diabetes.ti will also find: at risk of diabetes. The distance of one word in between is kept, but the stopword "for" is ignored. |
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Limits | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
The following limits are available for this database. See Database Limits in the Ovid Online Help for details on applying limits. |
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Limit |
Syntax | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Abstracts | Sentence Syntax: | limit 1 to abstracts | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Command Syntax: | ..l/1 ab=y | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit to Abstracts restricts retrieval to documents which include an abstract. |
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Age Groups | Sentence Syntax: | limit 1 to adult | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit by Age Groups restricts retrieval to any of the broad age groups or to specific childhood and adolescent years. If you choose this option, you will be presented with a list of ages from which to select:
See the Age Groups (AG) field for more information. If you want to capture all records that deal with "Childhood" (birth to age 12 years), you should choose Childhood through School Age, or all of the entries that begin with a "1". |
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Animal | Sentence Syntax: | limit 1 to animal | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit to Animal restricts retrieval to documents which are primarily about animal subjects. It will retain articles about both human and animal subjects. For individual animal species, search the animal name in the Subject Headings (SH) field, such as, "mice.sh." |
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Classification Codes | Sentence Syntax: | limit 1 to 2100 General Psychology | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit by Classification Codes restricts retrieval to those records which contain the selected Classifications representing broad subject categories, such as "Learning and Motivation" or "Linguistics, Language and Speech." If you choose this option, you will be presented with a list of Classification terms from which to choose. |
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Content Owner Types | Sentence Syntax: | limit 1 to "research institute (private)" | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit to a Content Owner Type restricts retrieval to the organization or individual that produces, owns, distributes, or has rights to the content.
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Document Types | Sentence Syntax: | limit 1 to Monograph | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit by Document Type restricts retrieval to any of the document types indexed by the American Psychological Association (APA). If you choose this limit, you will be presented with a list of document types from which to select:
See the Document Type (DT) field for more information. |
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English Language | Sentence Syntax: | limit 1 to english language limit 1 to english |
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Command Syntax: | ..l/1 en=y | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit to English Language restricts retrieval to documents which are written in the English language. Non-English language documents include English abstracts, but these will be eliminated by a limit to English. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Human | Sentence Syntax: | limit 1 to human |
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Command Syntax: | ..l/1 hu=y | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit to Human restricts retrieval to documents which are primarily about human subjects. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intended Audience | Sentence Syntax: | limit 1 to general public | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit to Intended Audience restricts retrieval to the intended audience of the document. If you choose this option, you will be presented with three options from which to select:
See the Intended Audience (IA) field for more information. |
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Languages | Sentence Syntax: | limit 1 to french | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Command Syntax: | ..l/1 lg=french | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit to Language restricts retrieval to any of the languages indexed by the American Psychological Association (APA). If you choose this option, you will be presented with an alphabetic list of languages from which to select. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Latest Update | Sentence Syntax: |
limit 1 to latest update limit 1 to update limit 1 to up="20071210" limit 1 to up="20070507-20070514" |
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Command Syntax: | ..l/1 up=y | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit to Latest Update restricts retrieval to documents which were most recently added to the database. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Local Holdings | Sentence Syntax: | limit 1 to local holdings | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit to Local Holdings restricts retrieval to documents from journals held in your library or institution. If your OVID System Administrator has created any special messages about a journal's availability, this message will display with the document in the Local Holdings (LH) field. |
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Media Types | Sentence Syntax: | limit 1 to Audio limit 1 to Interactive limit 1 to Video |
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A limit to a Media Type restricts retrieval to the specified content medium. |
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APA PsycExtra PDFs | Sentence Syntax: | limit 1 to APA PsycExtra PDFs | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit to APA PsycExtra PDFs restricts retrieval to those citations for which a pdf full text link is available. When viewing a citation with full text available use the LINK button to display full text. |
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Population Groups | Sentence Syntax: | limit 1 to human limit 1 to animal limit 1 to female |
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A limit to Population Groups restricts retrieval to the subject population of the document. If you choose this option, you will be presented with the following options from which to select:
See the Population Groups (PO) field for more information. |
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Publication Year | Sentence Syntax: | limit 1 to yr=2006 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Command Syntax: | ..l/1 yr=2007 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit to Publication Year restricts retrieval to the specified years covered. If you choose this option you will be prompted to enter the desired year or year range. The format is 4 digits, such as "1989" or "1992-1995." | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Test DOI | Sentence Syntax: | limit 1 to Test DOI | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
The Test DOI will restrict retrieval to a DOI that will link from APA PsycExtra® to APA PsycTests® database. |
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Tests and Measures | Sentence Syntax: | limit 1 to Tests and Measures | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A limit to Tests and Measures will restrict retrieval to documents that are specifically about a particular test or measurement instrument. This is a good way to eliminate studies that used a specific test or measurement as methodology, but which are actually about another topic. |
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There are range limits for the UP and CH fields.
These limits are not listed in the drop-down menu, however they can be used from the command line.
To run the limits use the following syntax from the command line. limit 1 to ch=20190708-20200914 limit 1 to up=20190708-20200914 |
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Go: Menu or Back |
Tools |
The following Search Tools are available for this database. For specific information on using these tools, refer to the Ovid Online Help linked below. |
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Changing to this Database | |||
To change a search session to a segment of this database from another database or another segment, use the following syntax in the Ovid Syntax tab: |
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Command Syntax: | ..c/psye | ||
Sentence Syntax: | use psye | ||
Click on this link to see other Advanced Search Techniques | |||
Go: Menu or Back |
Sample Documents |
Sample 1 |
*Copyright for APA PsycExtra® and by the American Psychological Association, All Rights Reserved* Accession Number 718882007-001 Title APA's Science Policy Insider News: October 2007! Publication Date Oct 2007 Year of Publication 2007 Source Science Policy Insider News. Oct 2007, np. Content Owner American Psychological Association, Public Policy Office, 750 First Street NE Washington, District of Columbia, US, 20002, http://www.apa.org/science/ Content Owner Type APA Corporate/Institutional Author American Psychological Association; Public Policy Office Pagination np Language English |
Sample 2 |
*Copyright for APA PsycExtra® and by the American Psychological Association, All Rights Reserved* Accession Number 646632007-001 Title Aging and Retrospective Revaluation in Causal Judgment Publication Date 2007 Year of Publication 2007 Source Aging and Retrospective Revaluation in Causal Judgment. 2007, 2 pp. Content Owner Midwestern Psychological Association (MPA). http://www.midwesternpsych.org/ Content Owner Type Non-Profit Organization Author Mutter, Sharon; Atchley, Anthony; Plumlee, Leslie; Simmons, Kristi. Institution/Affiliation Mutter, Sharon: Western Kentucky Univ Atchley, Anthony: Western Kentucky University Plumlee, Leslie: Western Kentucky University Simmons, Kristi: Western Kentucky University Pagination 2 pp Language English Abstract This conference abstract discusses a study that examined whether age-related deficits in associative memory might impair older adults' retrospective revaluation of causal cues. Please see full PDF for the entire abstract. (PsycEXTRA Database Record (c) 2013 APA, all rights reserved) Digital Object Identifer http://dx.doi.org/10.1037/e64663... Keywords aging, retrospective revaluation, causal judgment, associative memory, causal cues Subject Headings Aging Associative Processes Causal Analysis Cues Judgment Memory Classification Code Gerontology [2860] Population Group Human Age Group Adulthood (18 yrs & older); Aged (65 yrs & older) Document Type Conference: Abstract Conference Information Midwestern Psychological Association May 3 to 5, 2007, Palmer House Hilton, Chicago, IL. Update Code 20070903 |
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Producer Information |
Producer |
American Psychological Association APA PsycExtra® 750 First Street NE Washington, DC 20002-4242 Telephone: (800) 374-2721; (202) 336-5500 TDD/TTY: (202) 336-6123 Website: http://www.apa.org/pubs/databases/psycextra/ |
Copyright |
The APA PsycExtra® Database is copyrighted by the American Psychological Association (“APA”). Search results received by Customer in machine-readable form remain the property of APA. No part of the database may be duplicated in hard copy or machine-readable form without written authorization from the producer, except that reproduction of up to 25 print copies of search output is permitted for use within the Customer’s organization and that search output may be stored temporarily in electronic media for editing and reformatting for the Customer’s internal use or for one-time delivery to a single client for the client’s own internal use. APA takes care to provide an accurate representation of the Content, but assumes no legal liability including, but not limited to, errors or omissions, libel, or usefulness of the representation or the Content. Further, APA makes no warranties, express or implied, including, but not limited to, title, non-infringement of copyright or patent rights of others, of merchantability or fitness for a particular purpose, and assumes no responsibility for Customer’s use of the representation or the Content. Inclusion of content in APA PsycExtra® does not necessarily constitute endorsement or approval by APA. The Database is an informational resource and should not be used to replace the specialized training and professional judgment of a health care or mental health care professional. |
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