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Table 2 Confirmatory Factor Analyses of the KPSS

From: Psychometric properties of a Korean version of the Perceived Stress Scale (PSS) in a military sample

Model

S-B χ2

df

CFI

SRMR

RMSEA [90% CI]

One-factor model

480.914

35

.649

.157

.185 [.170, .200]

Two-factor model

117.885

34

.934

.063

.081 [.065, .097]

Bifactor model (A)

82.469

30

.959

.033

.069 [.051, .086]

Bifactor model (B)

52.051

25

.979

.039

.054 [.033, .074]

  1. Note. CFI Comparative fit index, SRMR standardized root-mean-square residual, RMSEA room-mean-square error of approximation, CI confidence interval; the bifactor model (A) includes a general stress factor and a nuisance factor, while the bifactor model (B) consists of a general stress factor and two group factors