A test of pharmacists' practice knowledge, for use in professional continuing education, was developed by having practitioners prepare 673 assessment items related to specific competencies. Item pool was refined by psychometric evaluation and content validation. Two parallel tests, each containing 120 items, were pilot-tested with first-year…

Effects of reviewing items and altering responses on examinee ability estimates, test precision, test information, decision confidence, and pass/fail status were studied for 376 examinees taking 2 certification tests. Test precision is only slightly affected by review, and average information loss can be recovered by addition of one item. (SLD)

Six methods of scoring multiple true-false items were compared in terms of reliabilities, difficulties, and discrimination. Results suggest that, for norm-referenced score interpretations, there is insufficient evidence to support any one of the methods as superior. For criterion-referenced score interpretations, effects of scoring method must be…

Examined quantitative evidence of an intellectual growth spurt during early adolescence by combining modern psychometric modeling, computerized testing with the Raven progressive matrices, and longitudinal socioeconomic and educational backgrounds. Found that gender difference was not significant. Notes the impact of this evidence on educational…

Reliability and validity of 4-point and 6-point scales were assessed using a new model-based approach to fit empirical data from 165 graduate students completing an attitude measure. Results suggest that the issue of four- versus six-point scales may depend on the empirical setting. (SLD)

Rasch calibration procedures were applied to item-response data for the 1,262 infants and toddlers comprising the standardization sample for the Mental Scale of the Bayley Scales of Infant Development. Analyses tend to confirm the psychometric integrity of the instrument. (Author)

Argues that Jensen's article contains an inaccurate and misleading account of Spearman's work and distorts the basic concepts of factor analysis. The target article has failed in all its main objectives; its major failing is a result of the irrelevance of factor analysis to the study of group differences. (SLD)

The use of performance assessments in accountability programs is discussed. Performance assessments have the potential to measure important objectives not easily measured by multiple-choice tests. Nevertheless, they are not suitable for every purpose, and their use should not be oversold. Many psychometric issues remain to be resolved. (SLD)

The desire for students to graduate with more than basic skills has fueled interest in performance assessment methods such as essay writing, group science experiments, or portfolio preparation. Officials in Vermont, California, Kentucky, Maryland, and other states are betting that performance assessments may prove as powerful a classroom influence…

A method is proposed for sequential evaluation of reliability of psychometric instruments. Sample size is unfixed; a test statistic is computed after each person is sampled and a decision is made in each stage of the sampling process. Results from a series of Monte-Carlo experiments establish the method's efficiency. (SLD)

A model integrating latent trait and latent class theories in characterizing individual performance on the basis of qualitative understanding is presented. This HYBRID model is illustrated through experiments with 119 Air Force technicians taking a paper-and-pencil test and 136 Air Force technicians taking a computerized test. (SLD)

Evidence indicates that subjective quality-of-life scales developed by N. M. Bradburn (1969) and by A. Campbell, P. Converse, and W. Rodgers (1976) can be as sensitive as physiological measures in distinguishing among medical treatment groups. These scales can complement more objective measures of patient status. (SLD)

This article discusses issues and difficulties encountered in efforts at the University of Birmingham (England) to standardize a new psychometric assessment tool, a tactile speed-of-information-processing test for children with blindness. The problem of defining the population on which the test is standardized is seen as particularly difficult.…

This paper provides a method for analyzing data consisting of event sequences and covariate observations associated with Markov chains. The objective is to use the covariate data to explain differences between individuals in the transition probability matrices characterizing their sequential data. (TJH)

The Objective Structured Clinical Examination (OSCE), initially developed for undergraduate medical education, has been adapted for assessment of clinical skills in podiatry students. A 12-month pilot study found the test had relatively low levels of reliability, high construct and criterion validity, and good stability of performance over time.…