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Table 2 Correlations between app quality, number of app features and BCTs

From: Apps to improve diet, physical activity and sedentary behaviour in children and adolescents: a review of quality, features and behaviour change techniques

  Number of BCTs Number of app features
MARS engagement score 0.74** 0.70**
MARS functionality score 0.04 −0.04
MARS aesthetics score 0.29 0.21
MARS information quality score 0.48* 0.35
MARS total score 0.54** 0.42*
Number of app features 0.77** 1.00
  1. Abbreviations: MARS mobile app rating scale, BCTs behaviour change techniques
  2. **p < 0.01
  3. *p < 0.05