Table 3 Reliability (internal consistency) of 25 questionnaire items and five latent variables
Factors | No of items | Cronbach’s alpha | 95% confidence interval |
|---|---|---|---|
Legitimacy perceptions (5-point scale) | 4 | 0.75 | (0.70, 0.78) |
Morality and cheating measures (5-point scale) | 4 | 0.71 | (0.68, 0.73) |
Beliefs about the benefit of doping (3-point scale) | 6 | 0.79 | (0.76, 0.82) |
Threat or deterrence appraisal (5-point scale) | 3 | 0.74 | (0.70, 0.77) |
Beliefs about the reference group’s endorsement of doping (5-point scale) | 8 | 0.88 | (0.87, 0.90) |
All items | 25 | 0.77 | (0.74, 0.80) |