Spanish experimental version of the State-Trait Depression Questionnaire (ST-DEP): State sub-scale (S-DEP)

Résumé 0

"Data are presented for internal consistency, factor structure, and constructvalidity of the Spanish Experimental Version of the State Sub-scale, S-DEP, of theState-Trait Depression Inventory: Euthymia and Dysthymia, ST-DEP (Ritterband andSpielberger, 1996; Spielberger, 1999). The study was carried out with a sample of 264university students. The BDI and the STA; were administered together with the S-DEP.Three small texts describing possible situations that each subject could experience werealso administered with the three instruments. The situations differed in the degree ofdepression that each one could provoke. Situations were neutral, mild, or moderatelydepressive. Each subject was asked to read each one of the possible situations andimagine his/herself as the protagonists. The subjects were to then respond to the testsaccording to their feelings. Upon performing a Promax Rotation on the Spanish experimentalversion items of the S-DEP, two independent factors emerged: negative afectivity(dysthymia) and positive afectivity (euthymia). The S-DEP scores significantly increasefrom the neutral situation to the mild and moderate depressive situations. This indicatesthat the S-DEP is a sensitive measure of depression severity as an affective state. Theinternal consistency and convergent validity indexes are elevated. An analysis of thedivergent validity would be discussed in future studies. Lastly, the limitations of theBDI as a measure of intensity and frequency of the affective state are also discussed."