Skip to main content
. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: J Abnorm Child Psychol. 2019 Feb;47(2):333–344. doi: 10.1007/s10802-018-0435-5

Table 2.

Descriptive statistics for predictor variables

Probands Cotwins of probands Matched controls
N Mean SD N Mean SD N Mean SD
Brooding 30 0.42 0.83 27 -0.01 1.11 38 -0.33 0.94
Inattention 41 0.55 0.91 36 -0.17 1.01 45 -0.37 0.87
Impulsivity 41 0.46 1.04 36 -0.07 0.94 45 -0.36 0.85

Note. Composites are standardized. Ns reflect the number of individuals from each group with complete data.