Concurrent validity of a WAIS-R seven-subtest short form in patients with brain impairment

Article Abstract:

Concurrent validity analysis shows that the average Wechsler Adult Intelligence Scale-Revised (WAIS-R) seven-subtest short form IQ score is within one point of the actual verbal, performance and full scale IQ scores in patients with closed-head injuries. However, the short form underestimates the average verbal IQ by about five points and the average full scale IQ by three and a half points in patients with presumed dementia. Evaluations of frequency distributions shows some patients' short form IQs and actual IQs to be discrepant.

Test validity, Intelligence tests, Brain damage, Wechsler Adult Intelligence Scale (Test)

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Validation of the General Health Questionnaire-12 using a sample of employees from England's health care services

Article Abstract:

Occupationally based studies of health care employees can play a valuable role in assessing the criterion validity of, and the appropriate threshold score for, the General Health Questionnaire-12 administered in its 12-item form. This research has also investigated the convergent and discriminant validity of the GHQ-12. It was found that the GHQ-12 has good reliability and convergent validity. The best threshold cutting score for this sample was 3/4.

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Examination of inmates' ability to malinger on the MMPI-2

Article Abstract:

A study of 55 male inmates from a minimum security federal prison and 51 psychiatric patients revealed the utility of validity scales of the Minnesota Multiphasic Personality Inventory-2 in accurately distinguishing between genuine psychiatric patients and inmates instructed to fake mental illness. Inmates instructed to malinger psychopathology overreported symptoms in comparison to inmates and patients who were given standard instructions.

Malingering

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