The Leiden Index of Depression Sensitivity-Revised (LEIDS-R) and its revision (LEIDS-RR): An investigation of the internal structure and conceptual validity in a Norwegian sample

The purpose of this study was to evaluate the internal consistency, factor structure, and validity of the Leiden Index of Depression Sensitivity-Revised (LEIDS-R) and a recent revision of the LEIDS-R (LEIDS-RR) in Norway. The LEIDS-R is a self-report inventory measuring cognitive reactivity. Cognitive reactivity is defined as the relative ease with which negative thinking is activated by mild low mood and has been shown to be a strong predictor...