Table 1.

Detection Rate ($\hat{\mathrm{\theta }}$ Increase From T1-T2) Among Modified and Unmodified Examinees.

	Modified examinees	Unmodified examinees
Summed score	0.18 (1.88)	0.01 (1.72)
Posterior variance	0.09 (.05)	0.10 (−.51)

Note. The number in the parentheses represents the average $\hat{\mathrm{\theta }}$ increase from T1 to T2 among examinees detected by each statistic.