Properties of measurement across studies
| Property | Objective measures (%) | Self-report measures (%) | Across all measures (%) |
|---|---|---|---|
| Citation given for reliability | 36 | 65 | 57 |
| Citation given for validity | 43 | 68 | 61 |
| Citation for reliability is a measurement study | 100 | 82 | 85 |
| Citation for validity is a measurement study | 100 | 88 | 90 |
| Measures with reliability | 43 | 68 | 61 |
| Measures with validity | 64 | 76 | 73 |
| Measures with both validity and reliability | 64 | 68 | 67 |
| Within sample reliability | 0 | 9 | 7 |
| Psychometric properties given For measures | 14 | 14 | 14 |
| Used a criterion measure to estimate validity | 100 | 40 | 64 |
| Criterion measure for energy expenditure | 50 | NA | NA |
| Criterion measure for physical activity | 95 | NA | NA |
| Cited population specific reliability | 40 | 70 | 64 |
| Citation population specific validity | 33 | 64 | 58 |
*Note: 29% of the measures used had neither reliability nor validity.29 ,30 ,40 ,42 ,47 ,50–54 ,56 ,62 ,63
†Note: One study stated validity of the self-report measure but gave no citation.69
NA, not applicable.