Believing something because someone else believes it rather than demanding and evaluating evidence makes you sound either lazy or gullible. But we yield to the authority of others all the time. When I see my doctor I don’t ask for evidence that the treatments he prescribes are effective, and when an architect designed a new deck for my house I didn’t ask for proof that it could support the weight of my grill and outdoor furniture. I believed what they told me because of their authority.
I think education researchers don’t speak with that kind of authority and (apparently unlike Sanden) I don’t think we deserve it. I can point to two key differences between a doctor (or architect, or accountant, or electrician, etc) and education researchers.
First, I yield authority to someone who has been vetted by a credible entity. I know that, unless you break the law, you cannot practice medicine (or follow the other professions named) without being licensed by the state of Virginia. I haven’t looked into the matter, but I have no reason to think that the accrediting agencies aren’t doing an acceptable job. For one thing, most of the professionals I hire achieve what I expect them to achieve.
Education researchers, in contrast, are not licensed by a credible authority.