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Videotape Reliability of the Third Revised Edition of the K-SADS

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Abstract.

Videotaped interrater reliability was assessed with the K-SADS-III-R on 25 children with a mean age of 10:9. Kappa statistics were computed in syndromes with a frequency rate of at least 20%. The following mean kappas were obtained: major depression = 0.83; overanxious disorder = 0.85; separation anxiety = 0.85; simple phobic disorder = 0.64; oppositional disorder = 0.89; attention deficit disorder = 0.88. The mean kappa for mother derived diagnoses was 0.86; for child derived diagnoses 0.79; and, for all diagnoses combined 0.84. These reliability findings are comparable to reports with similar methodology in the child literature. The improved kappas for the anxiety disorders achieved a primary goal for this revision of the K-SADS. This study has shown that the K-SADS-III-R has sufficient reliability for research purposes.

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The authors would like to thank Drs. N. Breslau, D. Cantwell, and H. Orvaschel for their helpful comments in the preparation of this manuscript.

This study was funded in part by a grant from Case Western University and NIMH Grant MH41684.

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