This paper describes the applicability of item response
theory to attitude scale development and provides
an illustration derived from a study of the propensity
toward jealousy in romantic relationships. The
item analysis model used is identical to the factor
analysis model, so factor analytic criteria are used to
evaluate the scale. These criteria may be used to decide
whether the scale may be scored as a measure of
a single variable and whether a simple sum or a
weighted sum of the item responses serves as an optimal
test score. Estimates of the reliability of the scale
based on the item response model are also described.
Thissen, David M, Steinberg, Lynne, Pyszczynski, Thomas & Greenberg, Jeff. (1983). An item response theory for personality and attitude scales: Item analysis using restricted factor analysis. Applied Psychological Measurement, 7, 211-226. doi:10.1177/014662168300700209
Thissen, David; Steinberg, Lynne; Pyszczynski, Thomas; Greenberg, Jeff.
An item response theory for personality and attitude scales: Item analysis using restricted factor analysis.
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