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Direct linkKaj Sparle Christensen; Ole Jakob Storebø; Bo Bach – Journal of Attention Disorders, 2025
Objective: This study examines the validity of the ASRS-5 as a new screening tool for ADHD and evaluates its proposed screening cut-off in a general population context. Method: A nationally representative sample of 2,002 individuals aged 18 to 80 years was surveyed using the ASRS-5, with complete data obtained from 714 participants. Psychometric…
Descriptors: Foreign Countries, Construct Validity, Psychometrics, Item Analysis
Download full textNielsen, Tine; Friderichsen, Ida Sophie; Hartkopf, Bjarke Tarpgaard – Frontline Learning Research, 2019
Self-efficacy is associated with both academic performance and attrition in higher education. Whether it is possible to measure students' academic self-efficacy after admission and prior to commencing higher education (i.e. pre-academic self-efficacy) in a valid and reliable way has hardly been studied. Aims: 1) to evaluate the construct validity…
Descriptors: Self Efficacy, Academic Achievement, Higher Education, College Admission
Kreiner, Svend – Applied Psychological Measurement, 2011
To rule out the need for a two-parameter item response theory (IRT) model during item analysis by Rasch models, it is important to check the Rasch model's assumption that all items have the same item discrimination. Biserial and polyserial correlation coefficients measuring the association between items and restscores are often used in an informal…
Descriptors: Item Analysis, Correlation, Item Response Theory, Models
