OK I will bite on this one.
First of all I do know that research has shown that women tend to learn hands-on skills much better in a women-only environment. That does NOT mean that they then must travel with only women in the backcountry. It does mean that they become better at using new vocabulary in sentences that make sense, for example instead of saying "I don't like this, don't want to ski this," she can now say "This is a 38* leeward slope with a Considerable rating. My risk tolerance says no," which is less loaded and easier to objectively evaluate or minimize.
If the instructors are tuned in, then they focus on the easily-observable facts and how to translate that into clear decisions (sounds like non-gender specific education anyway).
I have taught a few of these women's avy courses back in the day. Really fun, really supportive, especially with rescue and beacon skills. Those were through Jackson Hole Mountain Guides. I do know that Yostmark Backcountry Guides is running one in the Tetons this winter,
http://www.yostmark.com/events.php but any good guide service can easily put together any kind of custom course with any number of students, although you usually need 5-6 to make it the same price as the standard offerings.
When Ian McCammon came out with his heuristics research a number of years ago (to which Jonathan refers above, with his comment about men in mixed groups showing off), I put together a study for The Avalanche Review about all-women's groups and decision-making in the backcountry. I haven't posted it here
http://www.avalanche.org/moonstone/decision-making.php yet, but am working to expand that library.
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