The Development of the Experiential Impact of Mental Fatigue Scale

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.

Name thesis:degree_name

M Sc

Discipline thesis:degree_discipline

Psychology

Grantor dc:publisher

The University of Western Ontario

Year dc:date.issued

2023

Author dc:creator

• Richards, Olivia H

Advisor dc:contributor.advisor

• Johnsrude, Ingrid

• Mental fatigue
• quality of life
• assessment
• scale development
• factor analysis
• psychometric properties

Language dc:language.iso

en_ca

Handle dc:identifier.uri

https://hdl.handle.net/20.500.14721/37220

OAI identifier oai:identifier

oai:uwo.scholaris.ca:20.500.14721/37220