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Table 3 Item fit statistics for the GLLRM of the negatively worded items (“Perceived Stress”)

From: Measuring stress in Australia: validation of the perceived stress scale (PSS-14) in a national sample

Item

Conditional Outfit

Conditional Infit

Observed

SE

p-value

Observed

SE

p-value

Item 1

1.021

0.029

0.482

1.024

0.028

0.386

Item 2

0.950

0.031

0.108

0.948

0.026

0.049

Item 3

0.993

0.027

0.783

0.991

0.025

0.726

Item 11

1.015

0.026

0.550

1.024

0.025

0.355

Item 14

0.991

0.024

0.702

0.994

0.024

0.806

  1. The Conditional Outfit and Conditional Infit statistics have expected values equal to one under the Rasch model