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In 2015, Jenkins and Frederick published a study based on a large online survey (N = 60,058) that found a slight positive relationship between male's body height and partner counts.<ref>https://journals.sagepub.com/doi/pdf/10.1177/1474704915604563</ref> The main findings are reproduced on the right. | In 2015, Jenkins and Frederick published a study based on a large online survey (N = 60,058) that found a slight positive relationship between male's body height and partner counts.<ref>https://journals.sagepub.com/doi/pdf/10.1177/1474704915604563</ref> The main findings are reproduced on the right. | ||
The effect size is, however, very small. Even for the 1% shortest men, the effect was only d = .22 when compared to tall people. One interesting thing to notice about the sampling Jenkins did is she highly over-sampled "tall" men (at 40% this is higher than the 33% "average" men) and under-sampled "short" men (only 9%). Similarly there was a negligible amount of "very short" men, constituting only 1% of the sampling size, as compared to 15% of the sampling being "very tall". Brooke's bias is also shown in the naming system chosen: there is an "extremely tall" category yet no "extremely short" category for parity. | The effect size is, however, very small. Even for the 1% shortest men, the effect was only d = .22 when compared to tall people and an effect smaller than .2 is typically considered small in the social sciences. One interesting thing to notice about the sampling Jenkins did is she highly over-sampled "tall" men (at 40% this is higher than the 33% "average" men) and under-sampled "short" men (only 9%). Similarly there was a negligible amount of "very short" men, constituting only 1% of the sampling size, as compared to 15% of the sampling being "very tall". Brooke's bias is also shown in the naming system chosen: there is an "extremely tall" category yet no "extremely short" category for parity. | ||
=== Discussion of the research results === | === Discussion of the research results === | ||