Mark is asked to describe what it is like to work with Kelly. In response, he says, "She is mean, anxious, and really self-conscious." This description best matches a person scoring high on Costa and McCrae’s personality dimension.

neuroticism

Explanation:

Neuroticism can be described as fear, anxiety, shame, guilt, disgust, sadness. It is combined with instability in the self-concept.

answer; researchers typically cannot control people's sexual behaviors as would be necessary in an experiment;

corrupt also means cruel