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. Author manuscript; available in PMC: 2014 May 1.
Published in final edited form as: Am J Addict. 2013 May-Jun;22(3):10.1111/j.1521-0391.2012.12010.x. doi: 10.1111/j.1521-0391.2012.12010.x

TABLE 1.

Mean (SD) JTCI temperament dimension scores

JTCI dimension Combined sample Males (n = 370) Females (n = 407) T p-Value
Harm avoidance .276 (.18) .252 (.18) .297 (.19) 3.45 .001
Novelty seeking .415 (.19) .445 (.19) .388 (.18) –4.25 <.001
Reward dependence .552 (.23) .487 (.21) .612 (.24) 7.77 <.001
Persistence .692 (.25) .686 (.25) .698 (.25) .655 .513