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. 2022 Mar 9;10:838606. doi: 10.3389/fpubh.2022.838606

Table 3.

Rasch-residual-based principal component analysis.

Observed variance explained by the measure Expected variance of the model Unexplained variance explained by 1st contrast Variance explained by the items
PCL 5 54.80% 54.90% 5.60% (2.5) 31%
WHODAS 2.0 52.70% 53.40% 4.90% (3.7) 33.80%
P-scale 39.30% 40.90% 6.60% (2.0) 29.60%
EMIC 30.00% 30.20% 10.00% (2.1) 23.90%