The purpose of this study was to evaluate the internal consistency of the content scales of the Child Assessment Schedule (CAS). A total of 116 psychiatric patients with a mean age of 10 years were administered the interview, and 92 parents were administered the parent version. Coefficient alpha was calculated for each of the 11 content scales. High internal consistency was demonstrated for school, friends, worries, mood, physical complaints, and expression of anger. More moderate but acceptable alphas were observed for the family, fears, and self-image scales. The same general pattern of results was observed for both the child and parent interviews. Additional analyses revealed that the number of items in the CAS could be reduced up to 30% without sacrificing internal consistency. These results indicate that 9 of the scales yield reliable scores.
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American Psychiatric Association. (3rd ed., 1980; 3rd rev. ed. 1987).Diagnostic and statistical manual of mental disorders. Washington, DC: Author.
Hodges, K. (1983).Guidelines to aid in establishing inter-rater reliability with the Child Assessment Schedule. Unpublished manuscript.
Hodges, K. (1987). Assessing children with a clinical research interview: The child assessment schedule. In R. J. Prinz (Ed.),Advances in behavioral assessment of children and families (Vol. 3, pp. 203–233). Greenwich, CT: JAI Press.
Hodges, K. H., & Cools, J. N. (in press). Structured diagnostic interviews. In A. M. La Greca (Ed.),Through the eyes of the child: Obtaining self report from children and adolescents. Boston, MA: Allyn and Bacon.
Hodges, K., Cools, J., & McKnew, D. (in press). Test-retest reliability of a clinical research interview for children: The Child Assessment Schedule (CAS).Psychological Assessment: A Journal of Consulting and Clinical Psychology.
Hodges, K., Gordon, Y., & Lennon, M. (in press). Parent-child agreement on symptoms assessed via a clinical research interview for children: The Child Assessment Schedule (CAS).Journal of Child Psychology and Psychiatry.
Hodges, K., Kline, J., Barbero, G., & Woodruff, C. (1985). Anxiety in children with recurrent abdominal pain and their parents.Psychosomatics, 26, 859–866.
Hodges, K., Kline, J., Stern, L., Cytryn, L., & McKnew, D. (1982). The development of a child assessment schedule for research and clinical use.Journal of Abnormal Child Psychology, 10, 173–189.
Hodges, K., McKnew, D., Burbach, D. J., & Roebuck, L. (1987). Diagnostic concordance between the Child Assessment Schedule (CAS) and the Schedule for Affective Disorders and Schizophrenia for School-Age Children (K-SADS) in an outpatient sample using lay interviewers.Journal of the American Academy of Child and Adolescent Psychiatry, 26, 654–661.
Hodges, K., McKnew, D., Cytryn, L., Stern, L., & Kline, J. (1982). The Child Assessment Schedule (CAS) diagnostic interview: A report on reliability and validity.Journal of the American Academy of Child Psychiatry, 21, 468–473.
Hollingshead, A. B. (1975).Four-factor index of social status. Unpublished manuscript, Yale University, Department of Sociology.
Kashani, J., Orvaschel, H., Rosenberg, T., & Reid, J. (1989). Psychopathology among a community sample of children and adolescents: A development perspective.Journal of the American Academy of Child and Adolescent Psychiatry, 28, 701–706.
Nunnally, J. (1978).Psychometric theory (2nd ed.). New York: McGraw-Hill.
Runyan, D., Everson, M., Edelson, G., Hunter, W., & Coulter, M. (1988). Impact of legal intervention on sexually abused children.Journal of Pediatrics, 113, 647–653.
Turner, S. M., Beidel, D. C., & Costello, A. (1987). Psychopathology in the offspring of anxiety disorders patients.Journal of Consulting and Clinical Psychology, 55, 229–235.
Verbulst, F., Althaus, M., & Berden, G. (1987). The Child Assessment Schedule: Parent-child agreement and validity measures.Journal of Child Psychology and Psychiatry, 28, 455–466.
Verhulst, F., Berden, G., & Sanders-Woudstra, J. (1985). Mental health in Dutch children: II. The prevalence of psychiatric disorder and relationship between measures.Acta Psychiatrica Scandinavica, 72(Suppl. 324), 1–44.
The authors would like to express appreciation to Dr. William Wilson for his statistical assistance, Dr. Lea O'Quinn for her support of this project, G. Kay Bishop, who served as a research assistant, and Mildred Crabtree for manuscript preparation.
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Hodges, K., Saunders, W. Internal consistency of a diagnostic interview for children: The Child Assessment Schedule. J Abnorm Child Psychol 17, 691–701 (1989). https://doi.org/10.1007/BF00917731
- Internal Consistency
- General Pattern
- Additional Analysis
- Coefficient Alpha
- Diagnostic Interview