Development and validation of rumination scale for traumatic amputees (RSTA)

Abstract

The present research was undertaken to construct a standardized measure of rumination among traumatic amputees. The objectives of the present study were achieved in four phases. In the first phase an item pool of 70 descriptors was acquired. In second phase, EFA followed by Varimax rotation was conducted on a sample of 200 (90% men) traumatic amputees (Mage = 31, SDage = 1.8). The EFA resulted in a three-factor solution (instrumentality, brooding, and intrusion), which also yielded high reliability estimates. Phase three established the factorial validity of RSTA through Confirmatory Factor Analysis (CFA). The indices met the acceptable requirements for a good fit for the model. In last phase, convergent and discriminant validity of RSTA and its sub-dimensions were established. Overall,
the findings suggest that RSTA is an internally consistent and valid scale of rumination in traumatic amputees.