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ERIC Number: EJ826615
Record Type: Journal
Publication Date: 2008-Apr
Pages: 4
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0021-9584
A Statistical Analysis of Infrequent Events on Multiple-Choice Tests that Indicate Probable Cheating
Sundermann, Michael J.
Journal of Chemical Education, v85 n4 p568-871 Apr 2008
A statistical analysis of multiple-choice answers is performed to identify anomalies that can be used as evidence of student cheating. The ratio of exact errors in common (EEIC: two students put the same wrong answer for a question) to differences (D: two students get different answers) was found to be a good indicator of cheating under a wide range of circumstances. The longest continuous streak of identical answers was also a good indicator of cheating, especially for short tests with a low class average. This article also discusses how to interpret the data for use in practical circumstances and discusses ways to prevent cheating. (Contains 8 tables.)
Division of Chemical Education of the American Chemical Society. Subscription Department, P.O. Box 1267, Bellmawr, NJ 08099-1267. Tel: 800-691-9846; Tel: 856-931-5825; Fax: 856-931-4115; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A