Item

Loc

SE

Thresholds

FitRes

χ^{2} (N = 1395)

p(χ^{2})


3

− 0.171

0.04

− 3.3

− 1.8

− 0.1

1.7

3.5

−0.48

4.5

0.88

4

−0.099

0.04

−3.1

−2.0

−0.2

1.9

3.4

1.40

6.1

0.73

2

−0.076

0.04

−3.7

−2.0

−0.0

2.0

3.7

−2.14

12.4

0.19

5

0.097

0.04

−2.8

−1.8

−0.2

1.6

3.3

1.24

9.9

0.36

1

0.248

0.04

−2.7

−2.0

−0.3

1.7

3.2

−1.72

9.6

0.39

 Note: Items sorted by location order, applying the partial credit parameterization (PCM) of the polytomous unidimensional Rasch model (PCM) was applied, df = 9
 Estimates shown are from unidimensional Rasch analysis using RUMM2030 software showing item location point estimate (Loc) with standard error (SE). The p(χ^{2}) reports the probability of observing the χ^{2} value on the given degrees of freedom (df) where df = G1 and G is the number of proficiency groups applied in the formal test of fit. The thresholds indicate the location of the items along the latent continuum, covering the latent trait from approximately −3.7 to + 3.7 logits. The rounded average of the five thresholds are approximately − 3, − 2, − 0, 2 and 3 logits respectively