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Table 4 The goodness-of-fit of the 1-PL and 2-PL models to real data by year and period

From: Item pre-knowledge true prevalence in clinical anatomy - application of gated item response theory model

YearPeriodModelLog-LikAICaBICaCHulla
200811-PL− 12685.5025573.0925914.4623.58
2-PL− 12536.6025473.2426149.221.09
21-PL− 6707.5013617.0113901.0417.02
2-PL− 6592.0913584.1714146.611.13
200911-PL− 10729.4021660.8821997.9722.49
2-PL− 10619.0021637.8922305.400.97
21-PL− 5862.5611927.1312202.598.81
2-PL− 5774.9211949.8512495.320.81
201011-PL− 10321.7020845.3421174.3429.82
2-PL− 10207.6020815.1321466.621.11
21-PL− 6499.0113200.0113478.1218.40
2-PL− 6403.7713207.5313758.251.05
201111-PL− 12838.1025878.1926230.9910.10
2-PL− 12629.1025658.2326356.842.27
21-PL− 2687.065576.125765.115.34
2-PL− 2614.775629.546003.780.84
  1. aBold values identifies the best model according to each criterion