Psychologists attempt to let the facts speak for themselves by using an approach that is best described as

Psychologists attempt to let the facts speak for themselves by using an approach that is best described as "empirical".

Empirical approach alludes to the logical strategy for request and perception through experiments. Psychology is additionally a science and the thought behind exact approach is to take your own convictions and predispositions out of the condition from genuine analyses. You should reach inferences in view of empirical data and not what you thought.

Because they are harming humans