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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Psychol Med. 2015 Apr 28;45(12):2657–2666. doi: 10.1017/S0033291715000641

Table 3.

χ2 difference tests for nested models

Model χ 2 df Contrast Δ χ 2 Δ df p
Single-factor 508.69 104 -- -- -- --
3-factor 447.04 101 Single- vs. 3-factor 61.65 3 <0.001
Alternative model (5-factor) 333.89 97 3- vs. 5-factor 113.15 4 <0.001
7-factor 255.56 88 5- vs. 7-factor 78.33 9 <0.001