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. 2012 Apr-Jun;19(2):19–26.

Table 1a:

Rasch analysis reliability table for 81 measured persons

Raw score Count Measure Model error Infit Outfit
MNSQ ZSTD MNSQ ZSTD
Mean 131.7 36.0 0.04 0.16 1.00 –0.4 1.00 –0.4
SD 11.4 0.0 0.29 0.01 0.59 2.4 0.58 2.3
Max 170.0 36.0 1.12 0.19 3.41 7.3 3.39 7.1
Min 102.0 36.0 –0.68 0.15 0.25 –5.0 0.25 –4.9
Real RMSE 0.18 Adj. SD 0.23 Separation 1.34 Person reliability 0.64
Model RMSE 0.16 Adj. SD 0.25 Separation 1.55 Person reliability 0.71
SE of Person mean = 0.03

Person raw score-to-measure correlation = 1.00

Cronbach alpha (kr-20) person raw score reliability = 0.68