Analysis of convergent and discriminant validity of the Spanish experimental version of the State-Trait Depression Questionnaire (ST-DEP).

Introduction: This article reports data on the convergent and divergent validity of the Spanish adaptation of Spielberger's State-Trait Depression Questionnaire (ST-DEP). This questionnaire is a new tool because it offers an alternative to the obstacles found in most of the depression assessment scales that are differentiated in the content they evaluate and their estimation of depression levels.

Methodology: The present study was carried out with a sample of 300 participants (103 males and 197 females), with mean age of 21.