Table 2.
Reliability results, model fit indices and factor loadings
| |
Reliability results |
Validity results |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Constructs | Ra | 95% LOM | ICC (95% CI) | Cronbach alpha | χ2 (p) | RMSEA | CFI | GFI | AGFI | Factor Loadings |
| Self-efficacy |
−0.03 |
−0.80 to 1.17 |
0.89 (0.85 to 0.92) |
0.70 |
17.41 (0.04) |
0.07 |
0.94 |
0.97 |
0.92 |
0.40 - 0.73 |
| Intentions |
0.08 |
−0.71 to 0.89 |
0.83 (0.77 to 0.87) |
0.71 |
9.77 (0.08) |
0.08 |
0.97 |
0.98 |
0.93 |
0.43 – 0.81 |
| Situation |
0.04 |
−0.88 to 0.91 |
0.81 (0.75 to 0.86) |
0.79 |
0.90 (0.64) |
0.00 |
1.00 |
1.00 |
0.99 |
0.44 – 0.86 |
| Behavioral strategies |
0.06 |
−0.84 to 1.00 |
0.88 (0.84 to 0.91) |
0.75 |
6.69 (0.67) |
0.00 |
1.00 |
0.99 |
0.97 |
0.43 – 0.75 |
| Social support |
0.15 |
−0.68 to 0.70 |
0.89 (0.85 to 0.92) |
0.71 |
7.23 (0.20) |
0.05 |
0.98 |
0.98 |
0.95 |
0.47 – 0.70 |
| Outcome expectations |
−0.06 |
−0.70 to 0.74 |
0.84 (0.79 to 0.88) |
0.72 |
14.67 (0.01) |
0.11 |
0.94 |
0.97 |
0.90 |
0.45 – 0.77 |
| Outcome expectancies | 0.03 | −0.53 to 0.58 | 0.89 (0.87 to 0.92) | 0.65 | 14.67 (0.54) | 0.00 | 1.00 | 0.99 | 0.97 | 0.23 – 0.71 |
NOTE:aBivariate correlations between the difference (T2-T1) and the mean [(T1 + T2)/2]; 95% limits of agreement calculated as the range of differences falling within the mean of the difference ± 1.96 SDs. ICC intra class correlation; CIs confidence intervals; χ2 = chi-square, p = probability; RMSEA root mean square error of approximation; GFI goodness of fit index; AGFI adjusted goodness of fit index; CFI comparative fit index.