There is no such thing as a Christian Psychologist. Unless of course there is a such a thing as a Christian strip tease dancer. Psychology is a philosophy and a religion. By redefining psychology in such a way, Williams is able to twist the facts to support his premise. Psychology is not a science.
Science is what scientists do.
Williams is neither well-educated in science nor in psychology. This is a gratuitous argument. If he ever actually sees gravitation, for example, then he is one up on both Newton and Eistein. What Williams seems to be doing here is accusing psycho- logists of being scientists, i.e., they compare notes, question, experiment, and argue. Differences of opinion, however, do persist in how to treat various mental conditions.