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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