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Table 2 Table used to guide ratings of instruments

From: An assessment of self-reported physical activity instruments in young people for population surveillance: Project ALPHA

Criteria Score = 0 = 1 = 2
N <15 15-49 N > 50
Sample convenience narrow diverse
Validity: Criterion measure   indirect direct
Reliability: Test-retest period Same day 1 week >= 2 weeks
Absolute value of statistic (b) poor fair Excellent/strong
  1. Notes:
  2. a). Validity/Reliability rating:
  3. 0 = none
  4. 1 = weak (statistical value = 0 or scores 3 or less in other categories)
  5. 2 = moderate (statistical value = 1 or 2 and scores 4 or 5 in other categories)
  6. 3 = strong (statistical value = 1 or 2 and scores 6 or 7 in other categories).
  7. b). Absolute value of statistics reported: (i) ICC: poor agreement (<.40), fair to good agreement (0.40-0.75), excellent agreement beyond chance (>.75); (ii). r or rs: 0.3 fair, 0.5 good/moderate, 0.7 strong; (iii). kappa: poor agreement (<.40), fair to good agreement (0.40-0.75), excellent agreement beyond chance (>.75).
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