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. 2021 Jan 18;11(1):e043276. doi: 10.1136/bmjopen-2020-043276

Table 4.

Confirmatory factor analysis of Jenkins Sleep Scale—goodness of fit

Fit statistic Value Description
Likelihood ratio
 Χ2 84.49 Model versus saturated
 P value <0.01
Population error
 RMSEA 0.03 Root mean squared error of approximation
 90% CI, lower bound 0.03
 90% CI, upper bound 0.04
 P value 1.00 Probability RMSEA ≤0.05
Information criteria
 AIC 1 036 000 Akaike’s information criterion
 BIC 1 037 000 Bayesian information criterion
Baseline comparison
 CFI 1.00 Comparative Fit Index
 TLI 1.00 Tucker-Lewis Index
Size of residuals
 SRMR 0.01 Standardised root mean squared residual
 CD 0.78 Coefficient of determination