ERIC Number: ED174638
Record Type: Non-Journal
Publication Date: 1979-Apr
Reference Count: N/A
A Simulation Study on the Utility of Rasch and Classical Test Analysis Procedures.
Garrison, Wayne M.; White, Karl R.
Rasch and classical test analysis methods were compared with respect to their similarities and differences in the identification of noninformative items and implausible person records. Using computer simulated data with known parameters, each model was evaluated in terms of its effectiveness in: (1) identifying noninformative or "bad" items; (2) identifying persons for whom an instrument may be inappropriate; and (3) yielding an observed test score which correlated highly with a known true score. Results of the analyses demonstrated the superiority of the Rasch model over classical item analysis procedures, particularly in the identification of persons for whom an instrument fails to provide an accurate measure of the variable in question. (Author/JKS)
Publication Type: Speeches/Meeting Papers; Reports - Research
Education Level: N/A
Authoring Institution: N/A