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A Method for Studying Differential Distractor Functioning
Author(s) -
Green Bert F.,
Crone Carolyn R.,
Folk Valerie Greaud
Publication year - 1989
Publication title -
journal of educational measurement
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.917
H-Index - 47
eISSN - 1745-3984
pISSN - 0022-0655
DOI - 10.1111/j.1745-3984.1989.tb00325.x
Subject(s) - contingency table , differential item functioning , psychology , differential (mechanical device) , test (biology) , aptitude , population , cognitive psychology , constant (computer programming) , psychometrics , item response theory , developmental psychology , statistics , mathematics , computer science , medicine , paleontology , engineering , biology , programming language , aerospace engineering , environmental health
A method of analyzing test item responses is advocated to examine differential item functioning through distractor choices of those who answer an item incorrectly. The analysis, called Differential Distractor Functioning, uses log‐linear models of a three‐way contingency table to examine whether there is an interaction of population subgroup and option choice when ability is held constant. The analysis is explained and is exemplified in an analysis of the Verbal portion of a recent Scholastic Aptitude Test.