Causality? Or Mere Correlation?
The Associated Press is reporting that a new study out of a Canadian University “adds weight to the idea that sexual orientation has a physical basis.” A professor at Michigan State University quoted in the story goes further, stating that the study “absolutely” confirms a physical basis/cause for homosexuality.
Granted, I have not read the study itself. All I have read is the Associated Press story about the study. But after having read that story, I was left with the inescapable impression that, either the AP writer failed to include all the findings that back up the bold conclusion regarding a physical basis for sexual orientation, or the logic used to arrive at that conclusion is extremely weak, at best.
According to the story, Anthony Bogaert of Brock University in Saint Catherines, Ontario studied a total of 944 persons, taking note of the number and gender of each man’s siblings, and whether the siblings were related by blood or adoption. What he found was that, as opposed to the stated overall rate of homosexuality in men of three percent, men with older biological brothers saw that rate jump to five percent.
Somehow, despite the fact that this still leaves ninety-five percent of the men with older brothers as heterosexual, the always-rational minds of academia – with no agenda-driven motivation, mind you – tell us that this proves that there is a physical prenatal cause.
Never mind the still much larger occurrence of heterosexuality in the group singled out. Never mind that the common factor between the homosexual men studied – older biological brothers – is only one of several that could be cited as possible causes. Never mind that no information is given as to what portion of the overall male homosexual population that this group comprises. There seems to be a basic misunderstanding here of the difference between correlation and causality.
It seems the study shows a correlation between older male biological siblings and homosexuality, albeit a very miniscule one. But even granting that, it falls a long way from establishing causality.
The past several Boston Marathons have been won by black men. There is a correlation there. But it does not prove that success at road racing is determined by skin color. But that is the conclusion that the logic in this story would lead one to.
People who know me know how I feel about homosexuality and, based on what anyone can read at other places on this site, it shouldn’t be too hard for them to surmise. But even if I were to grant that there may be a physical cause that affects a miniscule portion of the population in the way claimed – leaving aside the question of whether that alone would make such behavior justifiable – and that the evidence for it is out there somewhere, what is revealed in this story is most certainly not that piece of evidence.
As I noted, I have not read the study – and likely won’t. So I will happily acknowledge that perhaps there is some vital piece of data revealed in it that the AP story left out, and I’ll be happy to consider it, if anyone cares to provide it. In the meantime, I’ll echo the comment of Professor Digory Kirke – of Chronicles of Narnia fame – in asking what kind of logic are they teaching students in schools nowadays.
Granted, I have not read the study itself. All I have read is the Associated Press story about the study. But after having read that story, I was left with the inescapable impression that, either the AP writer failed to include all the findings that back up the bold conclusion regarding a physical basis for sexual orientation, or the logic used to arrive at that conclusion is extremely weak, at best.
According to the story, Anthony Bogaert of Brock University in Saint Catherines, Ontario studied a total of 944 persons, taking note of the number and gender of each man’s siblings, and whether the siblings were related by blood or adoption. What he found was that, as opposed to the stated overall rate of homosexuality in men of three percent, men with older biological brothers saw that rate jump to five percent.
Somehow, despite the fact that this still leaves ninety-five percent of the men with older brothers as heterosexual, the always-rational minds of academia – with no agenda-driven motivation, mind you – tell us that this proves that there is a physical prenatal cause.
Never mind the still much larger occurrence of heterosexuality in the group singled out. Never mind that the common factor between the homosexual men studied – older biological brothers – is only one of several that could be cited as possible causes. Never mind that no information is given as to what portion of the overall male homosexual population that this group comprises. There seems to be a basic misunderstanding here of the difference between correlation and causality.
It seems the study shows a correlation between older male biological siblings and homosexuality, albeit a very miniscule one. But even granting that, it falls a long way from establishing causality.
The past several Boston Marathons have been won by black men. There is a correlation there. But it does not prove that success at road racing is determined by skin color. But that is the conclusion that the logic in this story would lead one to.
People who know me know how I feel about homosexuality and, based on what anyone can read at other places on this site, it shouldn’t be too hard for them to surmise. But even if I were to grant that there may be a physical cause that affects a miniscule portion of the population in the way claimed – leaving aside the question of whether that alone would make such behavior justifiable – and that the evidence for it is out there somewhere, what is revealed in this story is most certainly not that piece of evidence.
As I noted, I have not read the study – and likely won’t. So I will happily acknowledge that perhaps there is some vital piece of data revealed in it that the AP story left out, and I’ll be happy to consider it, if anyone cares to provide it. In the meantime, I’ll echo the comment of Professor Digory Kirke – of Chronicles of Narnia fame – in asking what kind of logic are they teaching students in schools nowadays.