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Table 2 Reliability of BCT identification

From: Do physical activity and dietary smartphone applications incorporate evidence-based behaviour change techniques?

Technique Krippendorf’s α
1. Provide general information .57
2. Provide information on consequences .41
3. Provide information about others’ approval .38
4. Prompt intention formation .57
5. Prompt barrier identification .10
6. Provide general encouragement .41
7. Set graded tasks .81
8. Provide instruction .66
9. Model or demonstrate the behaviour .82
10. Prompt specific goal setting .52
11. Prompt review of behavioural goals .47
12. Prompt self-monitoring of behaviour .85
13. Provide feedback on performance .54
14. Provide contingent rewards .60
15. Teach to use prompts/cues *
16. Agree on behavioural contract *
17. Prompt practice .56
18. Use follow-up prompts .46
19. Provide opportunities for social comparison .88
20. Plan social support/social change .88
21. Prompt identification as a role model .90
22. Prompt self-talk .66
23. Relapse prevention *
24. Stress management .85
25. Motivational interviewing .66
26. Time management *
Mean .62
  1. Reliability of BCT identification in the top-40 apps from the New Zealand Apple App Store Health & Fitness category: Krippendorf’s alpha per technique.
  2. Note. *- Input reliability data matrix exhibits no variation. BCTs = Behaviour Change Techniques.