A Study of Computer-Administered Stradaptive Ability Testing.
MINNESOTA UNIV MINNEAPOLIS DEPT OF PSYCHOLOGY
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A conventional vocabulary test and two forms of a stradaptive vocabulary test were administered by a time-shared computer system to undergraduate college students. The two stradaptive tests differed in that one counted question mark responses i.e., omitted items as incorrect and the other ignored items responded to with question marks. Analysis of difficulties of items associated with correct, incorrect, and question mark responses suggested that items with question mark responses should not be ignored, but should be treated as incorrect responses in branching decisions. Suggestions for future research on the stradaptive testing model are made.