2.1 Participants
Analyses were based on a convenience sample of undergraduate students recruited from criminology and criminal justice courses at a public university in the Midwest. Measurements included a self-report survey and physiological data. There were a total of 112 participants in the laboratory protocol. Cases that did not provide complete data for the psychopathic trait measures in the self-report survey were dropped from the analytical sample (n = 14). Six additional cases were excluded for either failure to complete the laboratory protocol, failure to report age, or data recording error (e.g., failure to save file). Finally, skin conductance exceeded the maximum measurable threshold allowed by the recording software for three participants. This resulted in an analytical sample of 92 participants for heart rate and 89 participants for skin conductance. Of the 92 subjects, 71 (77%) identified as female and 21 (22%) identified as male. Subjects averaged 21.54 years (SD = 3.24) of age and their self-reported race/ethnicity was 57.6% White, 23.9% Hispanic, 6.5% Black, 5.4% Asian or Pacific Islander, 4.3% Multiracial, 1% as American Indian/Native American and 1% as Other.