The Effect of Relatedness within Inbreeding Descriptions on Inbreeding Aversion.

<p>The effect of relatedness (<i>r</i> = .50 [full siblings], <i>r</i> = .25 [half siblings], and <i>r</i> = .125 [cousins]) between those described as participating on self-reported disgust with higher values indicating stronger disgust reactions within each type of inbreeding description; (participant inbreeding descriptions, in which the participants themselves were presented as having sex with their actual opposite-sex relatives; related third-party inbreeding descriptions, in which the participants’ actual same-sex sibling was presented as having sex with the participants’ opposite-sex relatives; unrelated third-party inbreeding descriptions, in which a same-sex individual unrelated to the participant was presented as having sex with their opposite-sex relatives. † <i>p</i>>.1 * <i>p</i>>.05, ** <i>p</i>>.01, *** <i>p</i>>.001.