Forced-choice vs. L-I-D response items in vocational interest measurement

Abstract

A forced choice form of an interest inventory was compared with an L-I-D form using the same items, for groups of Navy yeomen (clerical workers) and college students. Unit-weight and multiple weight keys were developed for each inventory to differentiate yeomen from students. The forced-choice keys were superior to the L-I-D keys in separating groups in seven of ten comparisons. The average superiority of forced-choice keys was a 5.9% decrease in overlapping. There was little difference in validity shrinkage for the two kinds of items. (PsycInfo Database Record (c) 2025 APA, all rights reserved)