Do non-biological gender identities stand scientific scrutiny?

Few debates today generate as much heat as the debate over gender identity. What began as a discussion within psychology and the social sciences now shapes courtrooms, classrooms, hospitals, sports, and public policy. Supporters often present the issue as settled, while critics argue that important scientific questions remain unresolved. 
This Info-Pack examines the evidence behind the claims: the distinction between sex and gender, the history of the debate, the findings of neuroscience and medicine, and the gap that may exist between scientific research, political activism, and public opinion.