Prisoner Dilemma and Psychopathy

This file contains data from 60 university students who played 40 rounds of the Prisoner Dilemma in 30 different matches.  The variables and their descriptions are:

1 - matchnum: an indicator of the people who were matched with a partner

2 - gametype: an indicator if the players were: (1) both low in psychopathy, (2) both high in psychopathy, (3) one low and one high psychopathy

3 - round: 1 - 40

4 - pax:  unique participant identifier

5 - self-defect: 1 = defect, 0 = cooperate

6 - points: payoff/winnings

7 - selfhighp: indicator if the participant was high or low psychopathy

8 - oppdef_prev: indicator if the opponent defected in the previous round

9 - matchtype: a three-category recoding of gametype where High-Low and Low-High pairings are combined as mixed.

10 - opp_highp: indicator if the opponent was high or low psychopathy

11 - mixedmatch: a binary categorization of matchtype (1 = mixed, 0 = homogeneous)