Table 2.
Random-effects average correlation and heterogeneity statistics for TPB associations and healthy eating
| Association | n | k | r + | CI | Q | I 2 |
|---|---|---|---|---|---|---|
| Attitude-intention | 28572 | 54 | 0.54 | 0.49-0.58 | 1202.19*** | 95.59 |
| Subjective norm-intention | 28572 | 54 | 0.37 | 0.33-0.42 | 988.66*** | 94.63 |
| PBC-Intention | 28284 | 53 | 0.42 | 0.36-0.48 | 2015.34*** | 97.42 |
| PBC-Behaviour | 28737 | 54 | 0.27 | 0.23-0.32 | 843.16*** | 93.71 |
| Intention-Behaviour | 29465 | 60 | 0.45 | 0.40-0.49 | 1326.56*** | 95.55 |
n = number of participants, k = number of effect sizes included in the analysis, CI = 95 % confidence interval, Q and I 2 = tests of heterogeneity, r + = random effects average correlation, *** p < .001