Development of a “Perceived Stress Scale" Based on Classical Test Theory and Graded Response Model
Themain purpose of this study is to develop a perceived stress scale based onClassical Test Theory (CTT) and Graded Response Model (GRM); to compare theparameters of the items in the scale that are tried to be developed accordingto both models, and to ...
Metin Yaşar
doaj +1 more source
Are Exam Questions Known in Advance? Using Local Dependence to Detect Cheating. [PDF]
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 ...
Stefan Zimmermann +2 more
doaj +1 more source
Maximum deviation global discrimination index (MDGDI) is a new item selection method for cognitive diagnostic computerized adaptive testing that allows for attribute coverage balance. We developed the maximum limitation global discrimination index (MLGDI)
Junjie Li +3 more
doaj +1 more source
Calculating Item Discrimination Values Using Samples of Examinee Scores Around Real and Anticipated Cut Scores: Effects on Item Discrimination, Item Selection, Examination Reliability, and Classification Decision Consistency [PDF]
This study examined the degree to which limiting the calculation of item discrimination values to groups of examinee scores near real and anticipated cut scores affected item discrimination, item selection, examination reliability, and classification ...
Earnest, Darin
core +1 more source
Psychometric properties of a novel knowledge assessment tool of mechanical ventilation for emergency medicine residents in the northeastern United States [PDF]
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 ...
Jeremy B. Richards +3 more
doaj +1 more source
Potential application of item-response theory to interpretation of medical codes in electronic patient records [PDF]
Background: electronic patient records are generally coded using extensive sets of codes but the significance of the utilisation of individual codes may be unclear. Item response theory (IRT) models are used to characterise the psychometric properties of
Van Staa, Tjeerd; id_orcid +36 more
core +2 more sources
Using Classroom Observation Scores Instead of Test Scores as Criterion in the Estimation of Discrimination Index [PDF]
Item discrimination index, which indicates the ability of the item to distinguish whether or not the individuals have acquired the qualities that are evaluated, is basically a validity measure and it is estimated by examining the fit between item score ...
Ayşe Şireci +3 more
core +1 more source
Item validity vs. item discrimination index: a redundancy?
In several literatures about evaluation and test analysis, it is common to find that there are calculations of item validity as well as item discrimination index (D) with different formula for each. Meanwhile, other resources said that item discrimination index could be obtained by calculating the correlation between the testee's score in a particular ...
R L Panjaitan +4 more
openaire +1 more source
Ensuring the quality of multiple-choice exams administered to small cohorts: A cautionary tale
Introduction Multiple-choice questions (MCQs) are a cornerstone of assessment in medical education. Monitoring item properties (difficulty and discrimination) are important means of investigating examination quality.
Meredith Young +2 more
doaj +1 more source
Background It is well established that racism is a fundamental contributor to poor health and inequities. There is consistent evidence of high exposure to discrimination among Aboriginal and Torres Strait Islander (Indigenous Australian) peoples, but ...
Katherine A. Thurber +11 more
doaj +1 more source

