{"id":{"repo_id":"uwo","oai_identifier":"oai:uwo.scholaris.ca:20.500.14721/33862"},"canonical_url":"https://search.dev.ndltd.org/etd/uwo/oai:uwo.scholaris.ca:20.500.14721/33862","repository":{"repo_id":"uwo","name":"Western University","base_url":"https://uwo.scholaris.ca/server/oai/request"},"display":{"title":"Item Properties and the Validity of Personality Assessment","abstract":"The aim of the current research was to evaluate psychometric properties of personality questionnaire items that can affect their validity, as measured by comparing self-ratings with roommate ratings on a series of personality questionnaires. The item properties under investigation included item content saturation, item social desirability, and mean item responses. Archival data collected between 1981 and 2004 representing various groups of same-sex undergraduate roommate dyads were used for the purpose of this research. Results demonstrated that item content saturation was the most consistent predictor of item response accuracy. Mean item responses also predicted accurate responding curvilinearly, with moderate mean item responses eliciting the most accuracy. In order to better predict outcome variables in education, clinical, and vocational contexts using scores on personality questionnaires, it is important for researchers to employ item selection procedures that take into account the specific item properties that we know can affect personality test validity.","abstract_html":"The aim of the current research was to evaluate psychometric properties of personality questionnaire items that can affect their validity, as measured by comparing self-ratings with roommate ratings on a series of personality questionnaires. The item properties under investigation included item content saturation, item social desirability, and mean item responses. Archival data collected between 1981 and 2004 representing various groups of same-sex undergraduate roommate dyads were used for the purpose of this research. Results demonstrated that item content saturation was the most consistent predictor of item response accuracy. Mean item responses also predicted accurate responding curvilinearly, with moderate mean item responses eliciting the most accuracy. In order to better predict outcome variables in education, clinical, and vocational contexts using scores on personality questionnaires, it is important for researchers to employ item selection procedures that take into account the specific item properties that we know can affect personality test validity.","abstract_has_math":false,"creators":["Plouffe, Rachel A."],"institution":"The University of Western Ontario","degree_name":"M Sc","degree_level":null,"degree_discipline":"Psychology","degree_department":null,"school":null,"contributors":[],"advisors":["Donald Saklofske"],"committee_chairs":[],"committee_members":[],"year":2016,"date_issued":"2016-07-14","date_published":"2016-07-14","updated_at":"2026-07-27T21:55:58Z","subjects":["test construction","validity","accuracy","content saturation","personality","self-report"],"languages":["en_ca"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/20.500.14721/33862","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Donald Saklofske"]},{"key":"dc:creator","label":"Author","values":["Plouffe, Rachel A."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-07-10T19:56:10Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-07-10T19:56:10Z"]},{"key":"dc:date.issued","label":"Date","values":["2016-07-14"]},{"key":"dc:publisher","label":"Institution","values":["The University of Western Ontario"]},{"key":"dc:type","label":"Dc Type","values":["thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Psychology"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M Sc"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["test construction","validity","accuracy","content saturation","personality","self-report"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_ca"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/20.500.14721/33862"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation: Author name, \"Thesis title.\" (Year). Western University Open Repository. https://doi.org/10.71858/123456."]},{"key":"dc:description.abstract","label":"Abstract","values":["The aim of the current research was to evaluate psychometric properties of personality questionnaire items that can affect their validity, as measured by comparing self-ratings with roommate ratings on a series of personality questionnaires. The item properties under investigation included item content saturation, item social desirability, and mean item responses. Archival data collected between 1981 and 2004 representing various groups of same-sex undergraduate roommate dyads were used for the purpose of this research. Results demonstrated that item content saturation was the most consistent predictor of item response accuracy. Mean item responses also predicted accurate responding curvilinearly, with moderate mean item responses eliciting the most accuracy. In order to better predict outcome variables in education, clinical, and vocational contexts using scores on personality questionnaires, it is important for researchers to employ item selection procedures that take into account the specific item properties that we know can affect personality test validity."]},{"key":"dc:title","label":"Title","values":["Item Properties and the Validity of Personality Assessment"]}]}],"canonical_facts":{"dc:contributor.advisor":["Donald Saklofske"],"dc:creator":["Plouffe, Rachel A."],"dc:date.accessioned":["2025-07-10T19:56:10Z"],"dc:date.available":["2025-07-10T19:56:10Z"],"dc:date.issued":["2016-07-14"],"dc:description":["The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation: Author name, \"Thesis title.\" (Year). Western University Open Repository. https://doi.org/10.71858/123456."],"dc:description.abstract":["The aim of the current research was to evaluate psychometric properties of personality questionnaire items that can affect their validity, as measured by comparing self-ratings with roommate ratings on a series of personality questionnaires. The item properties under investigation included item content saturation, item social desirability, and mean item responses. Archival data collected between 1981 and 2004 representing various groups of same-sex undergraduate roommate dyads were used for the purpose of this research. Results demonstrated that item content saturation was the most consistent predictor of item response accuracy. Mean item responses also predicted accurate responding curvilinearly, with moderate mean item responses eliciting the most accuracy. In order to better predict outcome variables in education, clinical, and vocational contexts using scores on personality questionnaires, it is important for researchers to employ item selection procedures that take into account the specific item properties that we know can affect personality test validity."],"dc:identifier.uri":["https://hdl.handle.net/20.500.14721/33862"],"dc:language.iso":["en_ca"],"dc:publisher":["The University of Western Ontario"],"dc:subject":["test construction","validity","accuracy","content saturation","personality","self-report"],"dc:title":["Item Properties and the Validity of Personality Assessment"],"dc:type":["thesis"],"thesis:degree_discipline":["Psychology"],"thesis:degree_name":["M Sc"]},"updated_at":"2026-07-27T21:55:58Z"}