Harmon, Oskar R.; Lambrinos, James - In: Journal of Economic Education 39 (2008) 2, pp. 116-125
cheating took place, the authors expected the prediction model to have the same explanatory power for all exams, and …, conversely, if cheating occurred in the unproctored exam, the explanatory power would be lower. Their findings are that both … across and within class, variations in the R-squared statistic suggest that cheating was taking place when the exams were not …