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Table 5 Descriptive statistics of the estimated item difficulty

From: Integrating automatic question generation with computerised adaptive test

 P(CTT)
 QS_AQS_BQS_CQS_DQS_EQS_F
n323232323232
.507.509.460.454.507.434
sd.091.095.083.098.089.085
max.687.687.562.625.656.594
min.375.312.219.281.312.312
r with b (IRT).789.782.830.840.891.816