Rasch Analysis of the Revised Two-Factor Study Process Questionnaire: A Validation Study.

The Revised Two-Factor Study Process Questionnaire (R-SPQ-2F) was developed in 1998 using the true score theory to measure students' deep approaches (DA) and surface approaches (SA) to learning. Using Rasch analyses, this study aimed to 1) validate the R-SPQ-2F's two-factor structure, and 2) explore whether the full scale (FS), after reverse scoring responses to SA items, could measure learning approach as a uni-dimensional construct. University students (N = 327) completed an online version of the R-SPQ-2F. The researchers validated the R-SPQ-2F by showing that items on the three rating scales (DA, SA, and FS) had acceptable fit; both DA and FS, but not SA, showed acceptable targeting function; and all three scales had acceptable reliabilities (0.74 - 0.79). The DA and SA scales, not the FS, satisfied the unidimensionality requirement, supporting the claim that student approaches to learning are represented by DA and SA as separate constructs.