Correcting for Guessing Increases Validity in Multiple-Choice Examinations in an Oral and Maxillofacial Pathology Course

Autor:	Anne Cale Jones, R. Neal Pinckard, Thomas J. Prihoda, C. Alex McMahan
Rok vydání:	2006
Předmět:	medicine.medical_specialty Educational measurement Intraclass correlation General Medicine Audiology Educational methodology Dental education medicine.disease Test score Oral and maxillofacial pathology Statistics medicine Mathematics Multiple choice
Zdroj:	Journal of Dental Education. 70:378-386
ISSN:	0022-0337
DOI:	10.1002/j.0022-0337.2006.70.4.tb04092.x
Popis:	A standard correction for random guessing on multiple-choice examinations was examined retrospectively in an oral and maxillofacial pathology course for second-year dental students. The correction was a weighting formula for points awarded for correct answers, incorrect answers, and unanswered questions such that the expected value of the increase in test score due to guessing was zero. We compared uncorrected and corrected scores on examinations using a multiple-choice format with scores on examinations composed of short-answer questions. The short-answer format eliminated or at least greatly reduced the potential for guessing the correct answer. Agreement of corrected multiple-choice scores with short-answer scores (intraclass correlation coefficient 0.78) was significantly (p=0.015) higher than agreement of uncorrected multiple-choice scores with short-answer scores (intraclass correlation coefficient 0.71). The higher agreement indicated increased validity for the corrected multiple-choice examination.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a1aac1eb45bb0892d1765ce9a3756764 https://doi.org/10.1002/j.0022-0337.2006.70.4.tb04092.x Zobrazit plný text záznamu Plný text