Psychometric properties of the Basic Questionnaire for Depression with an adolescent sample.

Abstract

Data about the validation of the Basic Questionnaire for Depression (CBD, Cuestionario Básico de Depresión) with an adolescent sample, are presented. The CBD is a 21-items inventory to assess the most representative areas of depression, and that has shown adequate psychometric properties with adult samples. The CBD was administered to 392 adolescents, (retest, n = 60), jointly with the CDI and the STAIC. The results favoured an one-factor solution, with an elevated internal consistency and a high temporary stability. The convergent validity with depression was elevated, but also it was it with anxiety. The CBD shows a greater capacity to detect `possible-cases' of depression than `possible-not-cases'. These results are discussed in relation to the necessity to corroborate them with clinical samples.