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Table 3 Model evaluation - overall fit measurement

From: Critical factors influencing physicians’ intention to use computerized clinical practice guidelines: an integrative model of activity theory and the technology acceptance model

Fit indices

Recommended value

Value

χ2

N/A

691.03

d.f

N/A

263

χ2/d.f

≤3.0

2.63

Goodness-of-fit index (GFI)

≧0.9

0.81

Normalized fit index (NFI)

≧0.9

0.90

Non-normalized fit index (NNFI)

≧0.9

0.90

Incremental fit index (IFI)

≧0.9

0.90

Comparative fit index (CFI)

≧0.9

0.90

Root mean square error of approximation (RMSEA)

≤0.08

0.076