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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Psychol Sport Exerc. 2012 Sep 1;13(5):606–613. doi: 10.1016/j.psychsport.2012.02.006

Table 2.

Longitudinal invariance for barrier self-efficacy, temptation, and decisional balance measurement models across 3- and 6-months

Barrier Self-Efficacy χ2 (df) χ2 Δ (dfΔ) CFI CFIΔ RMSEA CFit TLI
3-month Configural 203.13 (47) 0.95 0.07 .001 0.92
Weak 205.48 (52) 2.35 (5) 0.95 0.00 0.07 .001 0.93
Strong 205.92 (53) 0.44 (1) 0.95 0.00 0.06 .005 0.93
Strict 236.67 (59) 30.75 (6)* 0.95 0.00 0.07 .001 0.93
6-month Configural 253.98 (47) 0.93 0.08 .001 0.90
Weak 262.12 (52) 8.14 (5) 0.93 0.00 0.08 .001 0.90
Strong 263.18 (53) 1.06 (1) 0.93 0.00 0.08 .001 0.90
Strict 272.28 (59) 9.10 (6) 0.93 0.00 0.07 .001 0.90
Temptation χ2 (df) χ2Δ (dfΔ) CFI CFIΔ RMSEA CFit TLI
3-month Configural 174.26 (66) 0.98 0.05 0.60 0.97
Weak 177.28 (71) 3.02 (6) 0.98 0.00 0.05 0.75 0.97
Strong 187.37 (74) 10.09 (3) 0.98 0.00 0.05 0.72 0.97
Strict 208.84 (81) 21.47 (7)* 0.98 0.00 0.05 0.69 0.97
6-month Configural 177.27 (66) 0.05 0.55 0.97
Weak 180.56 (71) 3.29 (6) 0.98 0.00 0.05 0.71 0.97
Strong 183.95 (74) 3.03 (3) 0.98 0.00 0.05 0.77 0.97
Strict 222.29 (81) 38.34 (7)* 0.97 0.01 0.05 0.49 0.97
Decisional Balance χ2 (df) χ2Δ; (dfΔ) CFI CFIΔ RMSEA CFit TLI
3-month Configural 256.51 (122) 0.97 0.04 0.99 0.95
Weak 269.28 (129) 12.77 (7) 0.97 0.00 0.04 0.99 0.95
Strong 279.35 (132) 10.07 (3) 0.96 0.01 0.04 0.99 0.95
Strict 325.90 (141) 46.55 (9)* 0.95 0.01 0.04 0.96 0.95
6-month Configural 203.84 (122) 0.98 0.03 1.00 0.97
Weak 208.35 (129) 4.51 (7) 0.98 0.00 0.03 1.00 0.97
Strong 214.09 (132) 5.74 (3) 0.98 0.00 0.03 1.00 0.97
Strict 255.85 (141) 41.76 (9)* 0.97 0.01 0.03 1.00 0.96

Note:

*

p<0.001; χ2=chi-square; df=degrees of freedom; Δ =change; CFI=comparative fit index; RMSEA = root mean square error of approximation; CFit = test of close fit (probability RMSEA ≤ .05); SRMR = standardized root mean square residual; TLI = Tucker-Lewis Index