Activity Description Students complete the Buss-Perry Aggression Questionnaire (BPAQ) and the Eysenck Psychoticism subscale, then pool paired scores from 9 classmates to calculate a Pearson r. The lab examines whether more aggressive people tend to score higher on Eysenck's Psychoticism dimension — which measures tough-mindedness, non-conformity, and low empathy rather than clinical psychosis. Students explain the biological personality mechanism linking high-P scorers (low socialization, high