As a matter of fact, the behaviouralists image of science has so far been associated with a technical proficiency in research for reliable knowledge, and the pursuit of basic understanding with its necessary divorce from practical concerns, and the exclusion of value sophistication as some thing beyond the competence of science.

They believe that ethical evaluation is different from empirical explanation. Values and facts are two separate things and should be kept analytically distinct. They should not be mixed up with each other. By doing that one can develop pure science first, and then applied science comes next.