Data from an experiment relating pupil dilation to sexual orientation.
A data frame with 106 observations on the following 4 variables.
DilateDiffDifference in pupil dilation when looking at same-sex and opposite-sex nude photographs
SexF=female or M=male
Gay1=gay or 0=not, based on Kinsey scale score greater than 3
SexMale0=female or 1=male
DilateDiff is, essentially, the difference in pupil dilation when looking at (a) same-sex nudes and (b) opposite-sex nude photographs. More specifically, multiple measurements of pupil size were taken under each of the two conditions, together with a third condition that involved a neutral stimulus. Within-subject z-scores were then computed, which led to the DilateDiff numbers used here.