This study assessed the comparability and acceptability of two tests used to screen for overall intelligence levels in adults. At issue is whether either of these two tests is preferable for a definable subject population. Participants drawn from college (n = 30) and forensic (n = 50) settings completed the Shipley Institute for Living Scale (SILS), the Kaufman Brief Intelligence Test (K-BIT), and the reading section of the Wide Range Achievement Test-Revised (WRAT-R). The correlation between the SILS IQ and the K-BIT IQ scores was .77 for the college sample and .83 for the forensic group, with no significant differences between SILS and K-BIT mean IQ scores within each sample. Reading level also was significantly correlated with SILS and K-BIT IQ scores for both groups. A preference for the SILS over the K-BIT was expressed by two overlapping groups: college students and above average readers, while a majority of the forensic sample and poorer readers chose the K-BIT. Although the SILS and K-BIT yield comparable IQ scores within a sample, clinicians may want to consider the subject's reading ability, educational history, and feelings and attitudes about the assessment situation in deciding which of these two IQ screening tests to utilize.
Forty-six defendants adjudicated “not guilty by reason of insanity” (NGRI) between 1965 and 1971 were matched with a comparable group of defendants who had committed the same criminal act, pled guilty, and were imprisoned. Results indicated that: (1) as a group, the institutionalization time of NGRI acquittees did not differ significantly from the felons although institutionalization time did differ for specific offense categories; and (2) postinstitutional arrest rates of the NGRI and felon subjects were quite similar.
Estimations of the arrest rates for various offense categories of civilly admitted male mental patients were made by mental health center professionals, state hospital professionals and aides, law enforcement officers, college students, legislators, and community residents. Mental health personnel and legislators tended to judge patients as having lower arrest rates than was actually the case. Community residents overestimated patient arrest rates for rape and “other sexual offenses”, while police overestimated the patient rate for “other sexual offenses”.
In a sample of 48 adolescent inpatients, the Rorschach whole response and white space response were significantly related to gender and California Psychological Inventory classification.
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