Oh, very well. Thank you for proving that the scientific community disagrees with me, and proving evidence for your point. I can't say I actually agree with those criteria; especially since one is wholly impossible: there is never a possibility that there's 'no fear of reprisal' when the reprisal can take the form of conflicting with one's self-identity. To be honest, to accept a self-report I'd have to see the following:
1) A study which shows that the questions themselves do not introduce bias. An actual study, where multiple groups of participants were asked the same questions in different forms so as to prove the language of the question cannot influence the result. Of course, this would cause every questionnaire and interview study to fail, because the language does indeed affect the results and is thus a confounding variable (which cannot be controlled without pretending that some language "just doesn't affect people", and yet still functions as language).
2) A proof that the demographic of the sample was controlled for all controllable factors other than those measured. For instance, in this study it wouldn't be good enough to test for the correlation between gender and friendship satisfaction by just getting a bunch of men and women: they'd all have to be the same class, race, wealth etc.
3) The study cannot draw conclusions, nor interpret its results as causative. This is really quite self-explanatory: correlation does not imply causation. Yet, especially in sociology and psychology, this logical maxim seems to get forgotten amongst the excitement of having produced a study.
I'm sure there's more objections, but you've already put up with me arrogantly berating the scientific community for 3 points now. If I were allowed to edit my post to state that the scientific community disagrees with me regarding the validity of the 2007 study, I would.
As for an experimental methodology for studying friendship, I can't say that I can think of any studies which would do so and get past an ethics committee (bloody ethicists), but making the study longitudinal over childhood through to young adulthood would help, as it would show what age-bound variables affect the output. It might just be that young adult men are, for instance, too busy developing a career to have friends, or too busy drinking beer to have friends, or whatever; either way, making it longitudinal would allow some of the uncontrollable confounding variables (such a life experiences) to become more apparent.
1) A study which shows that the questions themselves do not introduce bias. An actual study, where multiple groups of participants were asked the same questions in different forms so as to prove the language of the question cannot influence the result. Of course, this would cause every questionnaire and interview study to fail, because the language does indeed affect the results and is thus a confounding variable (which cannot be controlled without pretending that some language "just doesn't affect people", and yet still functions as language).
2) A proof that the demographic of the sample was controlled for all controllable factors other than those measured. For instance, in this study it wouldn't be good enough to test for the correlation between gender and friendship satisfaction by just getting a bunch of men and women: they'd all have to be the same class, race, wealth etc.
3) The study cannot draw conclusions, nor interpret its results as causative. This is really quite self-explanatory: correlation does not imply causation. Yet, especially in sociology and psychology, this logical maxim seems to get forgotten amongst the excitement of having produced a study.
I'm sure there's more objections, but you've already put up with me arrogantly berating the scientific community for 3 points now. If I were allowed to edit my post to state that the scientific community disagrees with me regarding the validity of the 2007 study, I would.
As for an experimental methodology for studying friendship, I can't say that I can think of any studies which would do so and get past an ethics committee (bloody ethicists), but making the study longitudinal over childhood through to young adulthood would help, as it would show what age-bound variables affect the output. It might just be that young adult men are, for instance, too busy developing a career to have friends, or too busy drinking beer to have friends, or whatever; either way, making it longitudinal would allow some of the uncontrollable confounding variables (such a life experiences) to become more apparent.