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Full-Text Articles in Psychology
Prospective Associations Of Homocysteine, Executive Function, And Depressive Symptoms, Peter J. Dearborn
Prospective Associations Of Homocysteine, Executive Function, And Depressive Symptoms, Peter J. Dearborn
Electronic Theses and Dissertations
Associations of cardiovascular risk factors, cognitive performance, and depressive symptoms have been well established. However, the directionality of these associations as well as the specificity of these associations with respect to executive function are less clear. Additionally few studies have determined whether genetic risk factors, such as apolipoprotein-E4 (APOE-E4) genotype, and age moderate the associations of cardiovascular risk factors such as homocysteine with changes in depressive symptoms and how these associations may be mediated by cognitive performance. The primary aim of this study was to analyze the bidirectional associations of a full range of cognitive domains and symptoms of depression …
Data Analysis Using Item Response Theory Methodology: An Introduction To Selected Programs And Applications., Geoffrey L. Thorpe, Andrej Favia
Data Analysis Using Item Response Theory Methodology: An Introduction To Selected Programs And Applications., Geoffrey L. Thorpe, Andrej Favia
Psychology Faculty Scholarship
There are two approaches to psychometrics. Classical test theory is the traditional approach, focusing on test-retest reliability, internal consistency, various forms of validity, and normative data and standardization. Modern test theory or item response theory (IRT) focuses on how specific test items function in assessing constructs. IRT makes it possible to scale test items for difficulty, to design parallel forms of tests, and to provide for adaptive computerized testing (DeMars, 2010). “(T)he basic concepts of item response theory rest upon the individual items of a test rather than upon some aggregate of the item responses such as a test score” …