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Table 2 Intra- and inter-rater reliability of children’s time (minutes/day) spent in four types of physical activity

From: Development of a measurement approach to assess time children participate in organized sport, active travel, outdoor active play, and curriculum-based physical activity

Type of physical activity

Observer 1, round 1

Observer 1, round 2

Observer 2

ICC

Organized sport

34.9 (24.2, 50.3)

34.9 (24.3, 50.3)

30.9 (22.6, 42.1)

0.99

Active travel

14.8 (12.3, 17.3)

15.9 (13.5, 18.3)

14.7 (12.7, 16.8)

0.95

Curriculum-based physical activity

10.3 (8.7, 12.2)

9.9 (8.3, 11.8)

9.8 (8.2, 11.7)

0.98

Outdoor active play

41.0 (31.6, 53,2)

46.2 (34.0, 62.6)

40.8 (30.5, 54.6)

0.96

  1. Values are presented as mean (95% CI) derived using a two-part model
  2. ICC two-way random, single measure (2,1) intra-class correlation