Table 5.

Slope and intercept for equation of the first principal components between corrected multiple-choice scores and short-answer scores in the Oral and Maxillofacial Pathology course, by class

First Principal Component
ClassSlope (95% CI)Intercept (95% CI)
*From Prihoda TJ, Pinckard RN, McMahan CA, Jones AC.
Correcting for guessing increases validity in multiple-choice examinations in an oral and maxillofacial pathology course. J Dent Educ 2006;70(4):378–86.
2004–05*0.87 (0.76 to 0.98)9.51 (0.06 to 18.50)
2005–060.93 (0.72 to 1.23)4.42 (−21.36 to 22.32)
SignificanceP=0.568P=0.618