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Taylor, Catherine S.; Lee, Yoonsun – Applied Measurement in Education, 2010
Item response theory (IRT) methods are generally used to create score scales for large-scale tests. Research has shown that IRT scales are stable across groups and over time. Most studies have focused on items that are dichotomously scored. Now Rasch and other IRT models are used to create scales for tests that include polytomously scored items.…
Descriptors: Measures (Individuals), Item Response Theory, Robustness (Statistics), Item Analysis
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Allen, Jeff; Robbins, Steven B.; Sawyer, Richard – Applied Measurement in Education, 2010
Research on the validity of psychosocial factors (PSFs) and other noncognitive predictors of college outcomes has largely ignored the practical benefits implied by the validity. We summarize evidence of the validity of PSF measures as predictors of college outcomes and then explain how this validity directly translates into improved identification…
Descriptors: Institutional Research, Academic Persistence, Validity, At Risk Students
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Byrne, Barbara M.; Schneider, Barry H. – Applied Measurement in Education, 1988
For 241 normal and 132 gifted fifth graders and 113 normal and 117 gifted seventh graders in Ottawa (Ontario), exploratory and confirmatory factor analyses investigated the factorial validity of the Perceived Competence Scale for Children (PCSC). Overall, the PCSC demonstrated sound psychometric properties. (SLD)
Descriptors: Ability, Academically Gifted, Age Differences, Competence