Talk:507: Experimentation
A proper sample for Megan is at least three (or four) groups: definite lesbians; other curious girls; hetero males; possibly a randomised group (trans, bi, intersex, fetishes and kinks: depending on source) and an ordinary mixed-sex control, all of which could include the entirety of her year level. The other students might have felt uncomfortable with her empirically recording the data, though (filming and surveys).