In a study of 100 institutionalised patients with psychosis and an equal number of age- and sex-matched healthy controls from the same regional background, the prevalence of Australia antigen (HBsAg) was 11 and 2, respectively. Institutionalised psychotic patients are a high-risk group for hepatitis B virus infection.
Use of automatically reinforced stereotypy as reinforcement has been shown to be successful for increasing socially desirable behaviors in persons with intellectual disabilities (Charlop, Kurtz, & Casey, 1990; Hanley, Iwata, Thompson, & Lindberg, 2000; Hung, 1978). A component analysis of this treatment was conducted with 3 adolescents who had been… (More)
Functional analysis results for multiple topographies of aberrant behavior were graphed in an aggregate fashion and then separately for 48 clients. The results indicated that multiple topographies of behavior may be maintained by different contingencies. These results indicate that graphing functional analysis data in an aggregate fashion and then… (More)
In 34 patients of endogenous depression and 30 normal controls, the dexamethasone suppression test (DST) had a sensitivity of 67.6%, a specificity of 93.3% and a positive predictive power of 92%, which compares favourably with other diagnostic tests in clinical medicine. DST non-suppressors were significantly more depressed as compared to DST suppressors,… (More)