REPETITIVE PSYCHOMETRIC MEASURES: EQUATING ALTERNATE FORMS, A REPLICATION,
Abstract
An attempt was made to replicate the findings of others on form difficulty for two of the six Repetitive Psychometric Measures: the Number Facility subtest (NF) and the Speed of Closure subtest (SC). Tests were given to 207 volunteers to serially evaluate drug effects or other changes in performance for extended periods of time. The questions to be answered are: (1) How consistent are estimates of level of form difficulty for three samples of subjects. (2) How much correspondence is there between ranked level of difficulty as determined by others and as determined from the sample. (3) Does the application of a correction factor to another sample reduce the variability of the means of alternate forms. A significant degree of correspondence was found in the level of form difficulty of the NF and SC for three samples. There was a significant degree of correspondence between correction factors for the NF and SC obtained from these data and from those of other investigators. The use of correction factors obtained from one sample on the SC reduced both the range of the form means and their standard deviations when applied to another sample. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1966
- Accession Number
- AD0642164
Entities
People
- James J. Hart
- Kragg P. Kysor