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. Author manuscript; available in PMC: 2009 Dec 10.
Published in final edited form as: Appl Psychol Meas. 2009 Sep 1;33(6):419–440. doi: 10.1177/0146621608327801

Table 3.

Results for Simulated Item Banks, Simulated Data

5 Items
10 Items
20 Items
Bank Selection Criterion BIAS RMSE CORR BIAS RMSE CORR BIAS RMSE CORR
PEAKED MFIa 0.0283 0.3923 0.9822 0.0090 0.2744 0.9902 0.0032 0.2141 0.9938
MLWIb 0.0678 0.4798 0.9724 0.0178 0.2916 0.9890 0.0051 0.2179 0.9936
MPWIc 0.0261 0.3898 0.9822 0.0108 0.2747 0.9902 0.0033 0.2142 0.9938
MEPVd 0.0232 0.3871 0.9822 0.0104 0.2741 0.9903 0.0033 0.2143 0.9938
MEI (Fisher’s)e 0.0299 0.3903 0.9824 0.0095 0.2743 0.9902 0.0032 0.2142 0.9938
MEI (Observed)f 0.0283 0.3911 0.9823 0.0095 0.2745 0.9902 0.0032 0.2140 0.9938
Randomg 0.0095 0.8378 0.9233 0.0096 0.5554 0.9652 0.0000 0.3723 0.9834
Thetah 0.0196 0.4050 0.9785 0.0060 0.2783 0.9898 0.0038 0.2156 0.9937
Fixedi 0.0289 0.7840 0.9522 0.1060 0.5359 0.9746 0.0212 0.3403 0.9875
FLAT MFIa −0.0076 0.4921 0.9737 −0.0023 0.3628 0.9841 0.0007 0.2758 0.9902
MLWIb −0.0256 0.5093 0.9712 −0.0035 0.3641 0.9840 −0.0009 0.2771 0.9901
MPWIc −0.0086 0.4906 0.9737 0.0005 0.3620 0.9842 0.0014 0.2760 0.9902
MEPVd −0.0088 0.4905 0.9737 0.0007 0.3616 0.9842 0.0013 0.2757 0.9902
MEI (Fisher’s)e −0.0093 0.4913 0.9738 −0.0022 0.3628 0.9841 0.0010 0.2760 0.9902
MEI (Observed)f −0.0082 0.4892 0.9739 −0.0019 0.3616 0.9842 0.0007 0.2758 0.9902
Randomg 0.0036 0.8410 0.9291 −0.0007 0.5867 0.9638 −0.0039 0.3986 0.9816
Thetah 0.0059 0.5094 0.9695 0.0011 0.3644 0.9835 0.0002 0.2765 0.9901
Fixedi 0.0470 0.6666 0.9606 0.0188 0.4596 0.9772 −0.0125 0.3329 0.9866
a

Maximum Fisher’s information

b

Maximum likelihood weighted information

c

Maximum posterior weighted information

d

Minimum expected posterior variance

e

Maximum expected information using Fisher’s information

f

Maximum expected information using the observed information

g

Random selection

h

Selected at known theta value

i

Static form generated using expected information with respect to a standard normal distribution