To be termed scientific, a method of inquiry must be based on empirical and measurable evidence subject to specific principles of reasoning.
We, that is people who work in the field of computer science, need to demand more than guesses and beliefs when dealing with "solutions" to gender inequality. If someone has an ideas on how to improve the community and industry, those ideas need to be first tested and validated using the scientific method. Testing in Social studies are not a new concept, so we already got the tools we need.
If "woman in CS" programs can help to get women with intellect and passion into CS, it should be testable. Do that first, and then argue for it use when there is data backing it up.