Premium
Incidence of measurement disturbances in the Dental Admission Quantitative Reasoning Test
Author(s) -
Smith RM,
Kramer GA,
Kubiak AT
Publication year - 1990
Publication title -
journal of dental education
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 68
eISSN - 1930-7837
pISSN - 0022-0337
DOI - 10.1002/j.0022-0337.1990.54.6.tb02429.x
Subject(s) - test (biology) , rasch model , incidence (geometry) , sample (material) , item response theory , psychology , statistics , medicine , psychometrics , clinical psychology , developmental psychology , mathematics , paleontology , chemistry , geometry , chromatography , biology
This paper describes the incidence of inconsistent person‐response patterns in the Quantitative Reasoning Test (QRT), which is part of the Dental Admission Test (DAT) battery. using the Rasch person analysis approach to estimate the likelihood of a response pattern resulting from only two factors (the difficulty of the items and the ability of the person), a statistical profile of inconsistent response patterns was developed for a sample of students taking the DAT. The results of two test dates, April 1987 and October 1988, were included in this study. A random sample of 1,000 persons was drawn from each of these two test administrations. For the Fall 1988 sample, the person analysis was supplemented by a questionnaire designed to check the correspondence between a student's self‐reported response behavior and the statistical profile provided by the person analysis. The analysis of the two samples of response patterns indicates a high incidence (50 percent+) of atypical response patterns on the test. This has serious implications for the admissions procedure since many of the atypical response patterns invalidate the standard scores reported for those students.