Explain Walster & Walster's 'Computer dance' study (1969)
M&F students completed a questionnaire about themselves to decide a 'partner', they were also rated for physial attractiveness by observers. They were paired up randomly despite their questionnaire.
The most liked partners were the most physically attractive.
Berscheid et al(1971) replicated the study where each person was able to select their partner, this time participants chose partners who matched them in terms of physical attractiveness.