No, not really. While it is tempting to simplify it to a matter of "homosexuals cause homosexuality," the data reported here are not sufficient to draw that conclusion.
Consider:
If there is a "born that way" component to sexuality, it would manifest itself as a desire to engage in homosexual behavior.
Whether one acts on those desires is an entirely different matter -- one that is probably mostly governed by social constraints.
What this study shows is that kids are more likely to act out on the desire; but it does not address the source of that desire.
One rather obvious interpretation of these data is that there are fewer socially-imposed constraints against homosexual behavior in such households, and thus the kids are more likely to act out on whatever urges they have in that direction.
The idea that being in such a household actually causes homosexual behavior is also plausible, for a variety of reasons -- but this study does not justify the conclusion that it is the only reason why people have homosexual desires.
I would also note that Dr. Hansen is paid to take a particular position on the subject of homosexual behavior. As such, I am disinclined to take her comments on this study as definitive.
“No, not really. While it is tempting to simplify it to a matter of “homosexuals cause homosexuality,” the data reported here are not sufficient to draw that conclusion.”
I was referring to the nature v nurture debate...which, I believe, is explicitly addressed...whether or not she is paid, the results would indicate, in this case, that nurture has more to do with behavior than nature...