Table I.

Demographics of study participants

	Classical conditioning n = 19	Observational learning n = 21	Sham conditioning n = 18
Age, years, mean (SD)	21.8 (2.4)	22.2 (2.4)	21.7 (2.4)
Range	19–26	17–31	19–26
Education n (%)
Did not complete secondary	1 (5)	1 (5)	0 (0)
education
Secondary education	18 (95)	20 (95)	18 (100)

Sample size, age, and education level data for each group of participants included in analysis. Participants were asked to identify the highest level of education they had completed. Secondary education is considered as having completed a secondary/high-school diploma.

SD: standard deviation.