Earlier quoted context omitted.
> If these are attitudes typical of psychology, then I cannot say I consider psychology to be a proper social science. It's quite unscientific to draw a blanket conclusion like that about a field based on the anecdotal evidence of one named person and some unnamed "critics". Let's get some statistics before casting doubt on the entire field of psychology. I think most people are trying to get by and to be good. My pe…
Sure "but not ALL psychologists!" is valid here (as it is in literally any discussion about anything online or elsewhere) but she is not just one person. She is the former head of a professional organization for psychologists; if we look for someone to represent them as a whole, she is the first place we should look. Would the professional organization for physics have as their head someone who believes we had it rig…
Well, no; even we accept the arguments that (1) professional organizations of psychologists are a good proxy for generalizations about psychologists, and (2) the head of an organization is a good proxy for the organization, and (3) that each of those relations are strong enough that treating the relationship as transitive such that the head of a professional organization of psychologists is a good proxy for psychologists in general, she still wouldn't be the first place we would look to represent psychologists as a whole.
Because she's a former head of such an organization, not the current head. Just as we wouldn't look to Jimmy Carter as our first choice to represent what Americans as a whole believe (or John McAfee as our first choice to understand what the business organization now known as "Intel Security Group" believes), we wouldn't look to the former head of an organization as the first choice for generalization about what the group the organization is supposed to represent believes.