<P> In general, the adjustment process involves four parts: </P> <Ol> <Li> a need or motive in the form of a strong persistent stimulus </Li> <Li> the thwarting or nonfulfillment of this need </Li> <Li> varied activity, or exploratory behaviour accompanied by problem solving </Li> <Li> some response that removes or at least reduces the initiating stimulus and completes the adjustment . </Li> </Ol> <Li> a need or motive in the form of a strong persistent stimulus </Li> <Li> the thwarting or nonfulfillment of this need </Li>

Who said that adjustment is aprocess not a state