Time point | Index child's age | Number of items | Mean (SD) | Cronbach's Alpha | Percentage above clinical cut-off (1.75) |
---|---|---|---|---|---|
T1 | 18 months | 23 | 1.35 (.34) | .90 | 12 |
T2 | 2.5 years | 23 | 1.30 (.29) | .89 | 7 |
T3 | 4.5 years | 24 | 1.28 (.29) | .90 | 8 |
T4 | 8.5 years | 24 | 1.30 (.32) | .91 | 9 |
T5 | 12.5 years | 10 | 1.41 (.41) | .87 | 14 |
T6 | 14.5 years | 24 | 1.36 (.32) | .90 | 13 |