An Item Response Theory for Personality and Attitude Scales: Item Analysis Using Restricted Factor Analysis

摘要: This paper describes the applicability of item re sponse theory to attitude scale development and pro vides an illustration derived from a study pensity toward jealousy in romantic relationships. The analysis model used is identical factor model, so analytic criteria are evaluate scale. These may be de cide whether scored as measure single variable simple sum or weighted responses serves opti mal test score. Estimates reliability based on response also described.