1 Boring Old Man

DSM-5 Field Trials in the United States and Canada, Part I: Study Design, Sampling Strategy, Implementation, and Analytic Approaches
^{by Diana E. Clarke, William E. Narrow, Darrel A. Regier, S. Janet Kuramoto, David J. Kupfer, Emily A. Kuhl, Lisa Greiner, and Helena C. Kraemer}
American Journal of Psychiatry. 2012 October 30, AJP in Advance

DSM-5 Field Trials in the United States and Canada, Part II: Test-Retest Reliability of Selected Categorical Diagnoses and Analytic Approaches
^{by Darrel A. Regier, William E. Narrow, Diana E. Clarke, Helena C. Kraemer, S. Janet Kuramoto, Emily A. Kuhl, and David J. Kupfer}
American Journal of Psychiatry. 2012 October 30, AJP in Advance

^{Objective: The DSM-5 Field Trials were designed to obtain precise [standard error <0.1] estimates of the intraclass kappa as a measure of the degree to which two clinicians could independently agree on the presence or absence of selected DSM-5 diagnoses when the same patient was interviewed on separate occasions, in clinical settings, and evaluated with usual clinical interview methods.
Method: Eleven academic centers in the United States and Canada were selected, and each was assigned several target diagnoses frequently treated in that setting. Consecutive patients visiting a site during the study were screened and stratified on the basis of DSM-IV diagnoses or symptomatic presentations. Patients were randomly assigned to two clinicians for a diagnostic interview; clinicians were blind to any previous diagnosis. All data were entered directly via an Internet-based software system to a secure central server. Detailed research design and statistical methods are presented in an accompanying article.
Results: There were a total of 15 adult and eight child/adolescent diagnoses for which adequate sample sizes were obtained to report adequately precise estimates of the intraclass kappa. Overall, five diagnoses were in the very good range [kappa= 0.60–0.79], nine in the good range [kappa= 0.40–0.59], six in the questionable range [kappa= 0.20–0.39], and three in the unacceptable range [kappa values <0.20]. Eight diagnoses had insufficient sample sizes to generate precise kappa estimates at any site.
Conclusions: Most diagnoses adequately tested had good to very good reliability with these representative clinical populations assessed with usual clinical interview methods. Some diagnoses that were revised to encompass a broader spectrum of symptom expression or had a more dimensional approach tested in the good to very good range.}

 

DSM-5 Field Trials in the United States and Canada, Part III: Development and Reliability Testing of a Cross-Cutting Symptom Assessment for DSM-5
^{by William E. Narrow, Diana E. Clarke, S. Janet Kuramoto, Helena C. Kraemer, David J. Kupfer, Lisa Greiner, and Darrel A. Regier}
American Journal of Psychiatry. 2012 October 30, AJP in Advance

^{hat tip to Suzy Chapman}