“There is nothing as practical as a good theory” was Kurt Lewin’s (1943) way of asserting the value of theory in guiding research that addresses broad social problems. But psychological theory also ...

Expertise from Forbes Councils members, operated under license. Opinions expressed are those of the author. Emotions are related to mood, personality and motivation, and they cause measurable ...

Studies of response-shift phenomena in quality-of-life (QOL) research have grown steadily in the more than two decades of research. As a field, we have been calling a lot of different approaches ...