Regarding cognitive differences between men and women having a biological component: https://stanmed.stanford.edu/2017spring/how-mens-and-womens-...

Regarding the quality and replicability of stereotype threat studies, that came in vogue after the seminal Steele & Aronson 1995 paper:

https://replicationindex.wordpress.com/tag/does-stereotype-t...

https://replicationindex.wordpress.com/2017/04/07/hidden-fig...

https://heterodoxacademy.org/2015/12/30/is-stereotype-threat...