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Table 3 Model comparison for Prenatal Activity Restriction Stress Questionnaire

From: Development and validation of the prenatal activity restriction stress questionnaire: a Rasch rating scale analysis

Hypothesised models

Deviance

Parameters

Difference

p value

Deviance

Estimated parameters

Unidimensional

11,488.19

27

113.73

9

<0.001

Four-dimensional

11,374.46

36

  1. p-value was approximated using a Chi-square distribution table