Not to get into a discussion on the merits of astrology and will all due apologies to anyone around here with a degree in psychology or sociology - but quite frankly, most psychology and sociology has about as much 'scientific' merit as astrology - they make broad claims with little or no rigorously reproducible results and little, if any, non-anecdotal evidence for their more popular claims and any evidence there is can be interpreted in so many ways as to make it non-evidence.
And then there are the behaviorists...