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Comparison of Different Unidimensional-CAT Algorithms Measuring Students’ Language Abilities: Post-hoc Simulation Study

Table 2:

İtem Selection TerminationRules Number Of İtemsadministered RMSD(theta) SEM OfCAT Theta Reliability
UW-FI Precision (0.30) 15.92 0.733 0.291 0.920
Precision (0.20) 26.37 0,194 0.212 0.931
Fixed ( 30) 30 0.620 0.223 0.952
LW-FI Precision(.30) 16.26 0.852 0.293 0.936
Precision (.20) 27.98 0.714 0.232 0,958
Fixed 30 0.704 0.228 0.958
PW-FI Precision .30) 14.97 0.750 0.289 0.919
Precision (.20) 25.79 0.192 0.211 0.934
Fixed 30 0.614 0.218 0.955
FP-KL Precision (.30) 13.32 0.858 0.291 0.884
Precision (.20) 28.69 0.215 0.22 0,931
Fixed 30 0.192 0.183 0.951
VP-KL Precision (.30) 14.06 0.780 0.288 0.919
Precision (.20) 25.49 0.195 0.210 0,936
Fixed 30 0.642 0.214 0.959
FI-KL Precision (.30) 16.09 0.612 0.293 0.874
Precision (.20) 26.96 0.199 0.214 0.933
Fixed 30 0.475 0.226 0.929
VI-KL Precision (.30) 14.86 0.741 0.290 0.915
Precision (.20) 30 0.322 0.30 0.841
Fixed 30 0.590 0.219 0.953
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