Table 1 presents the intercorrelations between the various measures analyzed in this study as well as their relations with male gender and age. For each measure, means and standard deviations were listed in the last rows of the table. Male youth tended to exhibit better cognitive control on the Flanker task but not on the Stroop, to perform worse on one reward processing task (reversal learning), to engage in more risk behaviors, to have fewer internalizing behavior problems, and to have higher levels of sensation seeking. Older youth tended to perform better on working memory and Stroop tasks and to display lower levels of internalizing problems. However, they also were more impulsive and engaged in more risk behavior.
