Short-Interval Test-Retest Interrater Reliability of the Spanish Version of the Structured Clinical Interview for DSM-IV for Depressive Disorder

Introduction: Psychometric data concerning structured clinical interviews are affected by age and population characteristics. The present study was designed to investigate the test-retest interrater reliability of a Spanish version of the Structured Clinical Interview for Major Depressive Disorder (MDD) in adolescent students from Colombia. Methods: All participants were interviewed by a psychiatrist with the section for current MDD from the Spanish SCID-I clinical version; after three to ten days another psychiatrist performed the same interview. Both adolescent and second interviewer were blind to the first interview results. The statistical significance of kappa was tested by calculation of z-score. Statistical tests were done in STATA 8.0. Results: 164 adolescents were interviewed; mean age was 15.3 years (SD 0.96); 125 (76.2%) were female. The test-retest levels of agreement between first rater and second rater for current MDD was Kappa coefficient 0.612 (CI 95% 0.457-0.765). Conclusions: The results of this study suggest that SCID-I is reliable not only in adults, as was previously demonstrated, but also in adolescents. New studies are necessary to test the reliability of the different modules of the SCID in adolescents.