It has been suggested that an important factor influencing human mate selection is a social norm that the male should be taller than the female. With the aim of providing empirical evidence concerning the possibility of such a male-taller norm, height data were collected from bank account application forms of 720 couples. According to probability theory, the chance expectation for the occurrence of couples with females taller was 2/100. The actual value found was only 1/720, which was seen as supporting the notion of a male-taller norm.
Source: “The Male-Taller Norm in Mate Selection” from Personality and Social Psychology Bulletin, Vol. 6, No. 3, 396-401 (1980)
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