Lack of correlation between 2D:4D ratio and assertiveness in college age women

We recruited 70 female college age participants without history of injury to the right hand, administered the RAS and then calculated 2D:4D ratio based on measurements taken from photocopies of the participants' right hands. Unlike Wilson (1983), we found no significant relationship between digit ratio and assertiveness, r(68) = −0.0128, p > 0.05. Our findings suggest that variations in prenatal exposure to testosterone within the normal phenotypic range during the period of 2D:4D differentiation have little to no effect on assertiveness in women.