Linear regression techniques and continuous norning were used to develop a procedure to estimate age‐adjusted WAIS‐R IQ scores from the Shipley Institute of Living Scale. The estimation procedure was derived on a mixed psychiatric sample of 100 inpatients in a Veteran's Administration hospital setting and then was replicated on an independent sample of 50 psychiatric inpatients. Estimated scores based on the cross‐validation sample correlated.87 and.85, respectively, with WAIS‐R Full Scale scaled scores and IQs and did not over predict, which indicates a high degree of concordance between these two procedures. The estimation procedure also compared favorably to five other techniques initially developed for use with the WAIS or Wechsler‐Bellevue. In light of this favorable outcome, this estimation procedure is recommended for use in clinical and research settings in which a brief but accurate IQ estimate is desired.
Following Gorsuch (1983, 1984), a method for generating continuously adjusted age norms is illustrated using the normative data for the Wechsler Adult Intelligence Scale‐Revised (WAIS‐R) (Wechsler, 1981). Specific procedures for calculating age‐adjusted Verbal, Performance, and Full Scale IQ scores also are demonstrated, with a worked example. Compared to the original tabled norms for the WAIS‐R, IQ scores based on continuous norming are more accurate because they involve an analytic smoothing procedure that eliminates the inaccuracies introduced by traditional tabled norms and because people are compared against their exact age groups.
Linear regression techniques and continuous norming were used to develop a procedure to estimate age‐adjusted WAIS IQ scores from the Shipley Institute of Living Scale. The estimation procedure was derived on a mixed sample of 86 psychiatric patients and then was replicated on an independent sample of 44 psychiatric outpatients. Estimated scores based on the cross‐validation sample correlated .76 and .74, respectively, with WAIS Full Scale scaled scores and IQs and did not over‐ or underpredict, which indicates a high degree of concordance between these two procedures. Compared to other procedures, such as those employed by Paulson and Lin (1970b), the continuous norm estimates of age‐adjusted IQ are more stable because the age norms are smoothed analytically rather than developed on separate age groups. Thus, this estimation procedure is recommended for use in clinical and research settings in which a brief but accurate IQ estimate is desired.
As part of a military universal HIV screening program, 442 men were assessed for the presence of DSM-III-R defined psychiatric disorders and symptoms of anxiety and depression after notification of HIV seroconversion. Of them, 84.4% were in the earliest, asymptomatic stages of disease at the time of interview (96% did not have AIDS). The Structured Clinical Interview for DSM-III-R and Structured Interview Guide for the Hamilton Anxiety and Depression Scales were used. Relevant comparisons were made to Epidemiologic Catchment Area prevalence data. HIV seropositive men were more likely than age-matched men in the community to have current diagnoses of major depression (ages 18-44) and anxiety disorders (ages 25-44). Higher lifetime rates of major depression and alcohol use disorder, and high current prevalence of sexual dysfunction (21.7%) were noted. We conclude that men who become HIV seropositive have high rates of mood and substance use disorders prior to knowledge of seroconversion, and that early in the course of HIV infection men are at risk for developing major depression, anxiety disorders, and disorders of sexual desire.
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