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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: Psychol Assess. 2010 Jun;22(2):259–268. doi: 10.1037/a0018507

Table 2.

Results of Rasch Measurement Analysis: Item Indicators (N persons=442; N items=10)

N Infit Outfit
Measure MNSQ ZSTD MNSQ ZSTD
Mean 437.3 .00 1.01 −.2 1.06 .5
S.D. - .21 .29 4.0 .30 3.7
Max 442.0 .43 1.75 9.3 1.75 8.2
Min 408.0 −.34 .68 −5.2 .71 −4.4

Item reliability = .93; MNSQ = Mean Square Value; ZSTD = Standardized Value