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Table 6 Dimension MA: Item difficulties, standard errors, Infit, Outfit, T-test and correlations, estimated from final models

From: Rasch analysis of consumer attitudes towards the mountain product label

INPUT: 310 PERSON, 47 ITEM
REPORTED: 227 PERSON 8 ITEM 5 CATS
PERSON: REAL SEPARATION: 2.38 RELIABILITY.: 0.85
ITEM: REAL SEPARATION: 9.97 RELIABILITY.: 0.99
ITEM DIFFICULTY MEASURE MODEL S.E INFIT OUTFIT PTMEA CORR
MNSQ Ttest MNSQ Ttest
MA08 1.43 .13 1.05 .54 1.05 .50 .81
MA02 1.39 .13 1.25 2.25 1.26 2.42 .80 (*)
MA07 1.08 .13 .80  − 2.03 .84  − 1.67 .83 (*)
MA06 .99 .13 .94  − .55 .94  − .57 .83
MA03 .30 .14 1.18 1.68 1.11 .96 .78
MA04  − .23 .15 1.04 .43 .92  − .59 .79
MA01  − 1.70 .17 .85  − 1.31 .67  − 1.61 .75
MA05  − 3.27 .22 .89  − .70 .44  − 1.34 .66
MEAN .00 .15 1.00 .0 .90  − .2  
P.SD 1.57 .03 .15 1.4 .24 1.3  
  1. (*) INFIT or OUTFIT |Ttest|>2