The objectives of the present study were to 1) assess student attitudes to physiology, 2) evaluate student opinions about the influence of an objective structured practical examination (OSPE) on competence, and 3) assess the validity and reliability of an indigenously designed feedback questionnaire. A structured questionnaire containing 16 item…

Discusses statistical procedures for increasing test unreliability due to guessing in multiple choice and true/false tests. Proposes two new measures of test unreliability: one concerned with resolution of defined levels of knowledge and the other with the probability of examinees being incorrectly ranked. Both models are based on the binomial…

In this paper, several models for the psychometric nature of criterion-referenced tests are presented and results derived with implications for test construction, reliability and validity measures, and educational decision making. Both dichotomous and continuous underlying abilities to perform are considered. Illustrative data fitting both cases…

The Rasch model for test analysis is a latent-trait model, which specifies the relationship between observable test performance and the unobservable traits or abilities assumed under test performance. In most cases, the test constructor has no clue as to whether the latent traits postulated by the model are indeed the abilities he wants to…

The purpose of this study was to determine whether option weighting improved the internal consistency and intercorrelation of the subtests. The differential option-weighting scheme employed in this study is based on one devised by Guttman. The tests were first scored with Guttman-type weights and then with conventional correction-for-guessing…

Comparisons of students' educational performances are usually based on test and examination results. However, for such comparisons to be valid, it is suggested that evaluations must be made on some common basis since many educational and employment decisions are based on these evaluations. Standardized tests, often used when comparisons are to be…

To establish an objective measure of English skills for graduation candidates and to determine whether objective and subjective measures of English skills produce different results, 101 volunteers completed a writing sample and the Reading and Written English Expression tests of the Comparative Guidance and Placement Program (CGP). Scores obtained…