Table II.
Psychometric Properties for NIH Toolbox Pediatric Social Relationship Scales
| # items | Scale range (min–max) | Mean (SD) | Cronbach’s alpha | CFI | RMSEA | |
|---|---|---|---|---|---|---|
| Preadolescent self-report | ||||||
| Social Support Scale | ||||||
| Emotional Support | 7 | 7–35 | 31.11 (4.41) | .913 | .950 | .111 |
| Companionship Scales | ||||||
| Friendship | 5 | 5–25 | 20.30 (3.96) | .866 | .995 | .080 |
| Loneliness | 7 | 7–35 | 12.43 (5.36) | .926 | .954 | .168 |
| Social Distress Scales | ||||||
| Perceived Rejection | 7 | 7–35 | 12.67 (4.92) | .902 | .995 | .059 |
| Perceived Hostility | 5 | 5–25 | 11.66 (3.58) | .878 | .979 | .119 |
| Adolescent Self-Report | ||||||
| Social Support Scale | ||||||
| Emotional Support | 7 | 7–35 | 30.09 (4.13) | .905 | .981 | .092 |
| Companionship Scales | ||||||
| Friendship | 5 | 5–25 | 20.55 (3.75) | .863 | .992 | .116 |
| Loneliness | 7 | 7–35 | 11.49 (3.57) | .924 | .987 | .087 |
| Social Distress Scales | ||||||
| Perceived Rejection | 7 | 7–35 | 12.78 (4.70) | .902 | .999 | .020 |
| Perceived Hostility | 5 | 5–25 | 11.49 (3.57) | .883 | .993 | .073 |
Note. All scale scores calculated by summing items rated on a 5-point Likert scale (1 = Never, 2 = Rarely, 3 = Sometimes, 4 = Usually, 5 = Always).