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Browsing Faculty Publications by Subject "psychometrics"

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    Convergent validity of the engagement in meaningful activities survey in a college sample
    (Colorado State University. Libraries, 2011) Eakman, Aaron M., author; American Occupational Therapy Foundation, publisher
    The Engagement in Meaningful Activities Survey (EMAS) (Goldberg, Brintnell, & Goldberg, 2002) demonstrated sufficient psychometric properties in a sample of 122 adults. The EMAS was found to have adequate test-retest (r = .71) and internal consistency (α = .88) reliability; significant positive correlations between the EMAS and the subscales of the Basic Psychological Needs Scale and the Sources of Meaning Profile and negative zero-order correlations were found with short form versions of the Boredom Proneness Scale and the Depression, Anxiety, and Stress Scales. Step-wise multiple regression analysis results showed the Sources of Meaning Profile, Boredom Proneness Scale, and Competence subscale of the Basic Psychological Needs scale best predicted the EMAS. These results lend additional construct validity evidence in support of the EMAS as a brief measure of meaningful activity participation.
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    Measurement characteristics of the engagement in meaningful activities survey in an age-diverse sample
    (Colorado State University. Libraries, 2012) Eakman, Aaron M., author; American Occupational Therapy Association, Inc., publisher
    OBJECTIVE. This study evaluated the measurement characteristics of the Engagement in Meaningful Activities Survey (EMAS) in an age-diverse sample. METHOD. The sample included 154 older adults and 122 college students (age range = 18-100 yr). A Rasch-Andrich rating scale model was used to evaluate the EMAS. Analyses addressed rating scale design, person and item fit, item hierarchy, model unidimensionality, and differential item functioning. RESULTS. Category functioning was improved by reducing the EMAS item responses to four categories. Adequate person response validity was established, and all but one EMAS item demonstrated an ideal fit to the Rasch measurement model. After establishing the item hierarchy, I found the EMAS to be a unidimensional measure. Differential item functioning was not detected using Bonferroni-adjusted statistical criteria. CONCLUSION. The results confirm the potential to validly measure subjective qualities of meaningful activity participation. The EMAS can be used to evaluate processes and outcomes central to occupational therapy practice and to aid in the design of therapeutic occupations.