-BSRI is that people may not have insight into their degree of masculinity, femininity or androgyny. Asking people to rate themselves on a questionnaire relies on people having an understanding of their personality and behaviour that they may not necessarily have. Gender is a social construct which may be more open to interpretation than, say, sex. Furthermore, the questionnaire’s scoring system is subjective and people's application of the 7-point scale may differ. This suggests that the BSRI may not be an objective, scientific way of assessing masculinity, femininity or androgyny