{"id":{"repo_id":"uwo","oai_identifier":"oai:uwo.scholaris.ca:20.500.14721/37220"},"canonical_url":"https://search.dev.ndltd.org/etd/uwo/oai:uwo.scholaris.ca:20.500.14721/37220","repository":{"repo_id":"uwo","name":"Western University","base_url":"https://uwo.scholaris.ca/server/oai/request"},"display":{"title":"The Development of the Experiential Impact of Mental Fatigue Scale","abstract":"Measures of mental fatigue often do not consider daily life experiences, and existing measures fail to distinguish among various, potentially dissociable, ways that mental fatigue manifests. The present studies assessed the validity of the newly created Experiential Impact of Mental Fatigue Scale (EIMFS). Participants (Study 1, n = 365; Study 2, n = 243) responded to 85 items that address the various forms of mental fatigue across different situational contexts. The final scale, analysed through both exploratory and confirmatory factor analysis, included 22 items that loaded differentially on four factors which I term: emotional consequences, daily life impact, cognitive difficulties, and motivation and engagement. Each of the four subfactors as well as the scale overall had acceptable reliability and demonstrated construct and criterion validity with ancillary measures. Future research should administer the EIMFS in various neuropsychological populations to explore the relationship between mental fatigue and other symptoms experienced by these groups.","abstract_html":"Measures of mental fatigue often do not consider daily life experiences, and existing measures fail to distinguish among various, potentially dissociable, ways that mental fatigue manifests. The present studies assessed the validity of the newly created Experiential Impact of Mental Fatigue Scale (EIMFS). Participants (Study 1, n = 365; Study 2, n = 243) responded to 85 items that address the various forms of mental fatigue across different situational contexts. The final scale, analysed through both exploratory and confirmatory factor analysis, included 22 items that loaded differentially on four factors which I term: emotional consequences, daily life impact, cognitive difficulties, and motivation and engagement. Each of the four subfactors as well as the scale overall had acceptable reliability and demonstrated construct and criterion validity with ancillary measures. Future research should administer the EIMFS in various neuropsychological populations to explore the relationship between mental fatigue and other symptoms experienced by these groups.","abstract_has_math":false,"creators":["Richards, Olivia H"],"institution":"The University of Western Ontario","degree_name":"M Sc","degree_level":null,"degree_discipline":"Psychology","degree_department":null,"school":null,"contributors":[],"advisors":["Johnsrude, Ingrid"],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023-07-18","date_published":"2023-07-18","updated_at":"2026-07-27T21:56:16Z","subjects":["Mental fatigue","quality of life","assessment","scale development","factor analysis","psychometric properties"],"languages":["en_ca"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/20.500.14721/37220","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Johnsrude, Ingrid"]},{"key":"dc:creator","label":"Author","values":["Richards, Olivia H"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-07-10T21:32:23Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-07-10T21:32:23Z"]},{"key":"dc:date.issued","label":"Date","values":["2023-07-18"]},{"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":["Mental fatigue","quality of life","assessment","scale development","factor analysis","psychometric properties"]}]},{"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/20.500.14721/37220"]}]},{"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":["Measures of mental fatigue often do not consider daily life experiences, and existing measures fail to distinguish among various, potentially dissociable, ways that mental fatigue manifests. The present studies assessed the validity of the newly created Experiential Impact of Mental Fatigue Scale (EIMFS). Participants (Study 1, n = 365; Study 2, n = 243) responded to 85 items that address the various forms of mental fatigue across different situational contexts. The final scale, analysed through both exploratory and confirmatory factor analysis, included 22 items that loaded differentially on four factors which I term: emotional consequences, daily life impact, cognitive difficulties, and motivation and engagement. Each of the four subfactors as well as the scale overall had acceptable reliability and demonstrated construct and criterion validity with ancillary measures. Future research should administer the EIMFS in various neuropsychological populations to explore the relationship between mental fatigue and other symptoms experienced by these groups."]},{"key":"dc:title","label":"Title","values":["The Development of the Experiential Impact of Mental Fatigue Scale"]}]}],"canonical_facts":{"dc:contributor.advisor":["Johnsrude, Ingrid"],"dc:creator":["Richards, Olivia H"],"dc:date.accessioned":["2025-07-10T21:32:23Z"],"dc:date.available":["2025-07-10T21:32:23Z"],"dc:date.issued":["2023-07-18"],"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":["Measures of mental fatigue often do not consider daily life experiences, and existing measures fail to distinguish among various, potentially dissociable, ways that mental fatigue manifests. The present studies assessed the validity of the newly created Experiential Impact of Mental Fatigue Scale (EIMFS). Participants (Study 1, n = 365; Study 2, n = 243) responded to 85 items that address the various forms of mental fatigue across different situational contexts. The final scale, analysed through both exploratory and confirmatory factor analysis, included 22 items that loaded differentially on four factors which I term: emotional consequences, daily life impact, cognitive difficulties, and motivation and engagement. Each of the four subfactors as well as the scale overall had acceptable reliability and demonstrated construct and criterion validity with ancillary measures. Future research should administer the EIMFS in various neuropsychological populations to explore the relationship between mental fatigue and other symptoms experienced by these groups."],"dc:identifier.uri":["https://hdl.handle.net/20.500.14721/37220"],"dc:language.iso":["en_ca"],"dc:publisher":["The University of Western Ontario"],"dc:subject":["Mental fatigue","quality of life","assessment","scale development","factor analysis","psychometric properties"],"dc:title":["The Development of the Experiential Impact of Mental Fatigue Scale"],"dc:type":["thesis"],"thesis:degree_discipline":["Psychology"],"thesis:degree_name":["M Sc"]},"updated_at":"2026-07-27T21:56:16Z"}