Kurt Lewin
In Organizational development (OD), social psychologist Kurt Lewin is considered a founding figure. Impact on OD Action research Force Field[?] analysis For more info http://www.infed.org/thinkers/et-lewin.htm http://www.bomis.com/rings/Mgestalt-kurt_lewin-science/ http://fates.cns.muskingum.edu/~psych/psycweb/history/lewin.htm