This study evaluates the reliability and construct validity of the Beck Depression Inventory and the Symptom Check List -36 in a clinical sample of 300 outpatients. Alfa coefficients for the IDB was .8948 and for the SCL-36 it was .9469. Four factors were found for the IDB: Negative attitudes, cognitive-behavorial, biological and somatic. These findings document that the factors found for the IDB in a clinical sample of Puerto.