Table 3 Cross-sample test model fitness indicators

From: Evidence of structural invariance across three groups of Meehlian schizotypes

Model no.

Nest

Parameter constrained

Sample

χ2

df

χ2/df

Δχ2/Δdf

CFI

ΔCFI

TLI

ΔTLI

SRMR

RMSEA (90% CI)

AIC

BIC/adjusted BIC

1

 

None

 

559.154

141

3.97

 

0.968

 

0.956

 

0.053

0.065(0.059 0.071)

102,047.98

102,777.83/102,367.983

   

S

104.826

           
   

R

121.993

           
   

STU

332.336

           

2

1

FL

 

639.86

161

3.97

4.04***

0.964

0.004

0.955

0.001

0.062

0.065(0.060 0.070)

102,088.685

102,705.381/102,359.076

   

S

138.416

           
   

R

155.251

           
   

STU

346.194

           

3

1, 2

FL, INT

 

1,060.69

181

5.86

21.04***

0.933

0.031

0.927

0.028

0.073

0.083(0.078 0.088)

102,469.515

102,973.055/102,690.293

   

S

285.153

           
   

R

353.651

           
   

STU

421.886

           

4

1, 2, 3

FL, INT, UNQ.

 

1,252.441

205

6.11

7.99***

0.921

0.012

0.923

0.004

0.078

0.085(0.081 0.090)

102,613.267

102,981.021/102,774.509

   

S

354.593

           
   

R

387.961

           
   

STU

509.888

           

5

1, 2, 3

FL, INT, FVCV

 

1,139.831

187

6.10

13.19***

0.928

0.005

0.924

0.003

0.097

0.085(0.080 0.090)

102,536.657

103,006.250\102,742.550

   

S

329.744

           
   

R

375.36

           
   

STU

434.726

           

6

1, 2, 3, 5

FL, UNQ, FVCV, FMn

 

1,558.336

191

8.16

104.63***

0.896

0.032

0.893

0.031

0.125

0.101(0.096 0.105)

102,947.161

103,394.124/103,143.133

   

S

598.898

           
   

R

449.926

           
   

STU

509.512

           

7

1, 2

FL, FVCV

 

719.409

167

4.31

13.26***

0.958

0.006

0.95

0.005

0.088

0.068(0.063 0.074)

102,156.234

102,738.983/102,411.741

   

S

182.48

           
   

R

175.926

           
   

STU

361.002

           

8

1, 2, 7

FL, FVCV, FMn

 

959.161

171

5.61

59.94***

0.94

0.018

0.931

0.019

0.097

0.081(0.076 0.086)

102,387.987

102,948.104/102,633.570

   

S

331.201

           
   

R

243.126

           
   

STU

384.834

           
  1. Abbreviations: Nest, the current model nested in the previous model; Parameter(s) constrained: FL, factor loadings constrained to be equal across samples; FMn, factor mean; FVCV, factors‘ variance and covariance; INT, item intercepts; UNQ, uniqueness (error variance); Samples: S, schizophrenia patients; R, first-degree relatives; STU, college students. Goodness-of-fit indicators: CFI, comparative fit index; TLI, Tucker-Lewis index; SRMR, the Standardized Root Mean Square Residual; RMSEA, root mean square error of approximation; AIC, Akaike information criterion; BIC, Bayesian information criterion. ***=P<0.001.
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