From: Sedentary and physical activity time differs between self-reported ATLS-2 physical activity questionnaire and accelerometer measurements in adolescents and young adults in the United Arab Emirates
Correlation coefficient value range
Strength of correlation
0.00- 0.10
Negligible
0.10–0.39
Weak
0.40–0.69
Moderate
0.70–0.89
Strong
0.90- 1.00
Very strong