SDQISelf Description Questionnaire I (psychology; University of Oxford; UK)
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El SDQI ha obtenido repetidamente estimaciones de consistencia interna y fiabilidad test-retest aceptables y se ha adaptado y validado para la poblacion espanola (46).
Marsh (1988), in his extensive research, developed the Self-Description Questionnaire (SDQI, SDQ2, and SDQ3), which assesses general self-concept, as well as school related and nonschool-related aspects of self-concept.