Melodic discrimination tests have been used for many years to assess individual differences in musical abilities. These tests are usually analysed using classical test theory. However, classical test theory is not well-suited for optimising test efficiency or for investigating construct validity. This paper addresses this problem by applying modern item response modelling techniques to three me...

This article offers a 3-parameter model of testing, with 1) the difference between the ability level of the examinee and item difficulty; 2) the examinee discrimination and 3) the item discrimination as model parameters.

BACKGROUND Failure to adhere to standard item-writing guidelines may render examination questions easier or more difficult than intended. Item complexity describes the cognitive skill level required to obtain a correct answer. Higher cognitive examination items promote critical thinking and are recommended to prepare students for clinical training. This study evaluated faculty-authored examinat...

PURPOSE Prior descriptions of the psychometric properties of validated knowledge assessment tools designed to determine Emergency medicine (EM) residents understanding of physiologic and clinical concepts related to mechanical ventilation are lacking. In this setting, we have performed this study to describe the psychometric and performance properties of a novel knowledge assessment tool that m...

For trinary partial credit items the shape of the item information and the item discrimination function is examined in relation to the item parameters. In particular, it is shown that these functions are unimodal if 82 81 < 4 In 2 and bimodal otherwise. The locations and values of the maxima are derived. Furthermore, it is demonstrated that the value of the maximum is decreasing in 82 81. Conse...

Cheating is a common phenomenon in high stakes admission, licensing and university exams and threatens their validity. To detect if some exam questions had been affected by cheating, we simulated how data would look like if some test takers possessed item preknowledge: Responses to a small number of items were set to correct for 1-10% of test takers. Item difficulty, item discrimination, item f...

most universities across iran tend to develop english tests for placement, exit, achievement, and other purposes. examining the various features of such tests is imperative for making informed decisions about learners’ achievement level. the present study examined the features of a university-wide administered english language achievement test at iran university of science and technology (iust)...

OBJECTIVE To examine associations between self-reported discrimination and dietary intakes among South Asian (SA) people. METHODS Data from the Mediators of Atherosclerosis in South Asians Living in America study were used to analyze the relationship between self-reported discrimination and dietary behaviors (n = 866). Self-reported discrimination was measured with the 9-item continuous Every...

background: multiple choice tests (mct), are widely known and applied as useful evaluation tests in the field of education especially in medical science. items on a multiple-choice test consist of a stem, which is followed by a correct answer as well as three to four distracters. items on a well-written multiple-choice test will have stems that are precise and clear, one answer that is clearly ...