Valence
Attractiveness of an object; it can be either positive or negative.
Attractiveness of an object; it can be either positive or negative.
In Lewin’s theory a directional force assumed to underlie any behavioural relationship.
In Tolman’s theory substituting one means for another for achieving a particular result.
A philosophical doctrue which stresses that life cann’t be fully explained in terms of physiochemical principles.