Research and Practice in Technology Enhanced Learning

Table 7 Mean squared error (MSE) of the CAT simulations

From: Integrating automatic question generation with computerised adaptive test

			Test taker-based CV		Item-based CV
Group	LIN_EST	CAT_EST	CAT_REG	CAT_AVG	CAT_REG	CAT_AVG	CAT_ORD
C_A	0.142	0.032	0.044	0.065	0.062	0.157	0.044
C_C	0.199	0.072	0.058	0.092	0.068	0.163	0.060
C_D	0.156	0.060	0.055	0.040	0.051	0.052	0.054
C_E	0.152	0.024	0.055	0.062	0.069	0.089	0.050
C_F	0.328	0.047	0.095	0.060	0.090	0.100	0.097
avg	0.195	0.047	0.061	0.064	0.068	0.112	0.061

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