Table 2 Observer rating reliability test [30]
From: Why are some groups physically active and others not? A contrast group analysis in leisure settings
Sample N | N = 162 |
|---|---|
Images n excluded | n = 5 (bad quality) |
Sample n used for rating | n = 157 |
Mean (M) age in years | M = 30.38 years |
Mean BMI | M = 22.73 kg/m2 |
Total ratings by all observers: | 471 total ratings |
Rating results: | |
 Age category correct (in percent) | 96.60% |
 Age category errors (n total) | n = 16 |
 Age category error rate (in percent) | 3.40% |
 Average deviation from correct age (in years) | 2.83 years |
 Body shape category correct (in percent) | 97.24% |
 Body shape category errors (n total) | n = 13 |
 Body shape category error rate (in percent) | 2.76% |
 Average deviation from correct BMI (in kg/m2) | 1.38 kg/m2 |