Consistent Differential Discrimination Model Estimation

<p>A novel factor-analytic model—the differential discrimination model—for assessing individual differences in scale use has been recently introduced, together with a three-stage estimation approach for model fitting. Unfortunately, the second-stage estimator and, as a consequence, the third-stage estimator of this procedure are not consistent. In this article we show that (a) the differential discrimination model can be expressed in a structural equation model framework, and (b) consistent and simultaneous estimation of all model parameters can be achieved using standard SEM software.</p

supplement_2_code – Supplemental material for A Graded Response Model Framework for Questionnaires With Uniform Response Formats

<p>Supplemental material, supplement_2_code for A Graded Response Model Framework for Questionnaires With Uniform Response Formats by Dirk Lubbe and Christof Schuster in Applied Psychological Measurement</p

supplement_1_simulation – Supplemental material for A Graded Response Model Framework for Questionnaires With Uniform Response Formats

<p>Supplemental material, supplement_1_simulation for A Graded Response Model Framework for Questionnaires With Uniform Response Formats by Dirk Lubbe and Christof Schuster in Applied Psychological Measurement</p