Regardless of whether gender differences in adult behavior arise from conscious or unconscious psychological processes, one thing is clear: boys grow up in a world inhabited by a narrower range of emotions, one in which their experiences of anger are noticed, inferred, and potentially even cultivated. This leaves other emotions—particularly the more vulnerable emotions—sorely ignored or missing in their growing minds.

They found that men's performance deteriorated more than the women's when the game was at particularly tense moments, such as in sets that went to 4–4. After reaching the tie, the results showed the number of men's serves that were broken rose by more than 7%. "Based on our analysis of 8,280 men's and women's tennis games, we find that men consistently choke under competitive pressure, but with regard to women the results are mixed," the study said. "Furthermore, we find that even if women show a drop in performance in the more crucial stages of the match, it is still about 50% smaller than that of men."

Despite all of Clark’s accomplishments and pioneering work with children, Clark could not find an academic job. A “black female with a PhD in psychology was an unwanted anomaly in New York City in the early 1940s,” she wrote in her personal essay. Eventually, Clark stopped doing original research and utilized her knowledge of child development and race in social services. There was no organization that provided mental health services to black children in New York City, so she decided to fill that need herself.