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Journal of Patient-Reported Outcomes

Table 4 Unconstrained and Constrained Model fit Indices for the 15-item NAVQ-P

From: Psychometric evaluation of the near activity visual questionnaire presbyopia (NAVQ-P) and additional patient-reported outcome items

Model fit index

Unconstrained Model

Constrained model

CFI

0.966

0.991

TLI

0.966

0.991

RMSEA

0.095

0.137

SRMR

0.029

0.049

AIC

4552

4609

BIC

4758

4767

  1. CFI = Comparative Fit Index; TLI = Tucker Lewis Index; RMSEA = Root Mean Square Error of Approximation; SRMR = Standardizes Root Mean Square Residual; AIC = Akaike Information Criterion; BIC = Bayesian Information Criterion. A lower AIC and/or BIC value indicates a better model fit
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