M. Birenbaum et al., EFFECTS OF RESPONSE FORMAT ON DIAGNOSTIC-ASSESSMENT OF SCHOLASTIC ACHIEVEMENT, Applied psychological measurement, 16(4), 1992, pp. 353-363
The effect of response format on diagnostic assessment of students' pe
rformance on an algebra test was investigated. Two sets of parallel, o
pen-ended (OE) items and a set of multiple-choice (mc) items-which wer
e stem-equivalent to one of the OE item sets-were compared using two d
iagnostic approaches: a ''bug'' analysis and a rule-space analysis. It
ems with identical format (parallel OE items) were more similar than i
tems with different formats (OE vs. MC).