I am skeptical of psychiatry a a science. The brain may be the province of medicine, but I see no true science of the mind. Psychiatrists are busy using their pseudo-science to get people hooked on legal drugs to make them happy, while street pushers languish in jail for selling illegal drugs being used for the same purpose.
It absolutely is not a science. True sciences consider the quantifiable and yield reproducible results. Multiple psychiatric evaluations will produce multiple, even contradictory, results which are all somehow supposedly valid. Psychiatry is a system of commentary which is subjective and rhetorical and, therefore, an art.