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Table 2 Reliability results, model fit indices and factor loadings

From: Development and evaluation of social cognitive measures related to adolescent dietary behaviors

  Reliability results Validity results
Constructs R a 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
  1. 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.