An inclination that influences judgment is a bias. The term may be used in a merely descriptive way to mean an inclination, but more often it is used indicate an inclination that influences judgment but ought not to. "Prejudice" is a synonym for bias in this pejorative sense.
However, the bias that cannot in principle be eliminated in the work of scientific investigators, in contrast to bias or prejudice that can and should be eliminated, is also an important topic in research ethics. For example, the way disciplinary training inclines people to interpret the results of an experiment in terms of the established categories of that discipline is a permanent feature of research, and one that must be taken into account in assessing responsible behavior in research. Of course, researchers may hold disciplinary biases and still be unbiased in other respects, that is, they may be impartial on the question of the truth or falsity of a particular research hypothesis.