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Table 4 Multi-group CFAs testing for measurement invariance between sex and age SNS

From: Spanish validation of the self-evaluation of negative symptoms scale SNS in an adolescent population

  χ2Satorra-Bentler df CFI NNFI RMSEA [90% CI] SRMR ΔCFI
Sex
 Male (n = 2099) 571.13 165 .986 .984 .035 [.032, .038] .048  
 Female (n = 2422) 976.12 165 .981 .979 .045 [.032, .048] .057
 Configural 1393.19 326 .984 .981 .038 [.036, .040] .056  
 Scalar 1820.44 375 .978 .978 .042 [.039, .043] .068 −.006
Age
 Age:11–15 (n = 3301) 1003.96 165 .983 .980 .039 [.036, .042] .049  
 Age: 16–18 (n = 1220) 541.51 165 .983 .983 .043 [.039, .047] .056
 Configural 1372.77 326 .984 .982 .038 [.036, .040] .056  
 Scalar 2103.62 375 .975 .974 .045 [.043, .047] .073 −.009