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The Omit Phenomenon In High-Stakes Achievement Testing Using An Short- Response Format, Gabrielle Matters
The Omit Phenomenon In High-Stakes Achievement Testing Using An Short- Response Format, Gabrielle Matters
Dr Gabrielle Matters
To questions about the who, what and why of item omission on tests in short-response format, very few answers have been provided from a combination of the discipline areas of psychology and educational measurement. In this research study, an empirical approach is taken subsequent to the proposal of a theoretical model. It posits that the three clusters constituting 'presage' have effects, some direct, some indirect, some positive, some negative, on the 'product' - short-response omit rate - and also influence the hidden (and therefore unable-to-be-measured) 'process' - the interaction between item and person. Data were obtained on the 1997 QCS …