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Table 3 The fit statistics and item locations for the GHQ-6

From: A Rasch and confirmatory factor analysis of the General Health Questionnaire (GHQ) - 12

Item Item description Location SE Infit
MNSQ
Infit
ZSTD
Outfit
MNSQ
Outfit
ZSTD
GHQ5 "Felt constantly under strain" -0.49 0.04 1.03 1.24 1.04 1.55
GHQ6 "Felt you couldn't overcome your difficulties" 0.56 0.04 1.01 0.32 0.98 -0.68
GHQ8 "Been able to face up to your problems" -0.01 0.05 1.11 2.89 1.18 2.90
GHQ9 "Been feeling unhappy and depressed" -0.26 0.04 0.76 -9.55 0.75 -8.72
GHQ10 "Been losing confidence in yourself" 0.78 0.04 0.99 -0.18 1.00 0.10
GHQ12 "Been feeling reasonably happy" -0.58 0.05 0.95 -1.52 0.97 -0.63