Cluster | Healthy controls | ADHD | Difference | |||
---|---|---|---|---|---|---|
r | p | r | p | z | p | |
Cluster 1 | 0.079 | 0.652 | 0.512 | 0.005 | −1.842 | 0.033 |
Cluster 2 | 0.051 | 0.773 | 0.389 | 0.037 | −1.362 | 0.087 |
Cluster 3 | −0.070 | 0.690 | 0.452 | 0.014 | −2.112 | 0.017 |
ADHD = attention-deficit/hyperactivity disorder.
↵* We computed Pearson correlation coefficients for both groups and compared them using Fisher z and normal distribution. However, the same pattern of correlations arises when nonparametric Spearman coefficients that are less susceptible to distorted distributions are computed.