This study investigated the usefulness of the bifactor model in the investigation of score equivalence from computerized and paper-and-pencil formats of the same reading tests. Concerns about the equivalence of the paper-and-pencil and computerized formats were warranted because of the use of reading passages, computer unfamiliarity of primary…

This study compared vertical scaling results for the Rasch model from BILOG-MG and WINSTEPS. The item and ability parameters for the simulated vocabulary tests were scaled across 11 grades; kindergarten through 10th. Data were based on real data and were simulated under normal and skewed distribution assumptions. WINSTEPS and BILOG-MG were each…

In this study, we investigated possible context effects when students chose to defer items and answer those items later during a computerized test. In 4 primary school reading tests, 126 items were studied. Logistic regression analyses identified 4 items across 4 grade levels as statistically significant. However, follow-up analyses indicated that…

Studied the factorial invariance of scores from male and female students when reading comprehension was assessed with narrative and expository passages related to war and military content. Narrative and expository item factor loadings and intercepts were invariant for both genders, a finding that supports the use of passages about war for reading…

Studied the factorial invariance of a seventh grade reading assessment across groups of 600 general education and 1,128 limited English proficient students. Fit statistics generally supported invariance across all groups for factor loadings and intercepts, but invariance was not supported for the error variances. (SLD)

Gender differences in answers to constructed-response reading items from a state assessment program were studied with four raters rating approximately 500 papers at two grade levels. Results indicate that number of words written and number of unrelated responses show significant gender differences and are related to holistic scores. (SLD)

A method to investigate consequential evidence of validity for a state assessment developed to change teacher instructional practices is presented. Survey responses from over 1,000 Kansas teachers were used to construct a path model that allowed effects of the state assessment to be studied at building and teacher levels. (SLD)