The authors investigated measurement properties of the "Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition," generalized anxiety disorder (GAD) criteria in the National Comorbidity Survey and the Virginia Adult Twin Study of Psychiatric and Substance Use Disorders (VATSPSUD). The two studies used different widely used…

The validity of a technique for estimating premorbid intellectual functioning based on Wechsler Adult Intelligence Scale-Revised (WAIS-R) subtest performance and demographic information used in best-performance fashion was investigated with the 1,880 individuals from the WAIS-R standardization sample. Results support use of the approach. (SLD)

The definition, importance, conceptual basis, and functional nature of content validity are explored, with an emphasis on psychological assessment in clinical situations. Conditional and dynamic aspects and multiple elements of content validity are discussed, and quantitative and qualitative methods of content validation are reviewed. (SLD)

Three types of methodological issues particularly salient in research involving the assessment of substance use or abuse are discussed with strategies for avoiding problems: (1) the reliability and validity of methods; (2) the variability and episodic course of substance use; and (3) the heterogeneity of individuals with substance use disorders.…

The methodological and practical problems that are especially common in or unique to assessment research in correctional settings are discussed. The distinctive culture of correctional institutions and the complications caused by governing bodies contribute to the particular problems encountered in collecting and analyzing data. (SLD)

A review of articles in Psychological Assessment reveals that many researchers develop instruments without the benefit of consultation with members of the target population. To the extent that researchers do consult the target population, most fail to bring consultation in early enough to inform the identification and specification of key…

The goals of exploratory and confirmatory factor analysis are described, and procedural guidelines for each approach are summarized, emphasizing the use of factor analysis in developing and refining clinical measures. Recent examples of the use of factor analysis are reviewed and used to highlight controversies that can emerge. (SLD)

Methodological considerations in conducting research on the Minnesota Multiphasic Personality Inventory-2 (MMPI-2), the most widely used clinical personality instrument, are reviewed, with reference to the original MMPI and the version for adolescents (MMPI-A). Potential pitfalls in personality testing and personality assessment research are…

Validation issues that arise with measures of constructs and behavior are addressed with reference to general reasons for using assessment procedures in clinical psychology. A distinction is made between the representational phase of validity assessment and the elaborative validity phase in which the meaning and utility of scores are examined.…

This article discusses preparation of research reports in light of how the information is likely to be evaluated and how the report contributes to the research process. The focus is on description, explanation, and contextualization of the study. Common issues related to interpretation of assessment studies are also highlighted. (SLD)

The Inattention and Hyperactivity-Impulsivity factors of the Attention Deficit Hyperactivity Disorder Rating Scale-IV were used to predict diagnostic status of 147 referred elementary school students. Results suggested that using a single informant was best for ruling out Attention Deficit Hyperactivity Disorder (ADHD) and using parent and teacher…

Extent of agreement between retrospective and prospective measures of variables in 7 content domains (residence change, anthropometrics, injuries, reading ability, family characteristics, behavior problems, and delinquency) was studied for 1,037 New Zealand adolescents. Absolute agreement among measures was poor, suggesting caution when using…