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Table 4 Goodness-of-fit indices for the PHQ-4 one-factor and two-factor models (N = 5,140)

From: Reliability and validity of the Patient Health Questionnaire-4 scale and its subscales of depression and anxiety among US adults based on nativity

Model

χ2

df

ΔLR χ2

Δdf

p

RMSEA (95% CI)

SRMR

TLI

CFI

Two-factor

27.635

1

  

< 0.001

0.072 (0.050, 0.096)

0.005

0.990

0.998

One-factor

425.077

2

397.442

1

< 0.001

0.203 (0.187, 0.219)

0.025

0.919

0.973

  1. Note. ΔLR χ2 = Likelihood Ratio Chi-Square Difference. RMSEA = root mean square error of approximation; SRMR = standardized root mean square residual; TLI = Tucker Lewis Index; CFI = comparative fit index. 95% CI = 95% confidence interval
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BMC Psychiatry

ISSN: 1471-244X

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