Johnson began his work on social interdependence theory and the appropriate use of cooperative, competitive, and individualistic efforts in the mid-1960s. At that time, elementary, secondary, and university teaching was dominated by competitive and individualistic learning.
Social Darwinism, with its premise that students must be taught to survive in a "dog-eat-dog" world dominated educational thought, although it was being challenged by individualistic learning largely based on
B. F. Skinner's work on programmed learning and behavioral modification. In the 60's and 70's, while
cooperative learning was generally ignored by educators, Johnson challenged the prevailing competitive and individualistic practices by presenting the theory and research on cooperative, competitive, and individualistic learning, creating operational procedures for cooperative learning and appropriate competition, and implementing cooperative learning in schools and universities.
Research review Johnson's first published review of the research on cooperation and competition appeared in 1970 in his book,
The Social Psychology of Education. This was followed by a more comprehensive review, with his brother Roger, published in the
Review of Educational Research in 1974 and the editing of a special issue of the
Journal of Research and Development in Education in 1978. In 1981 and 1983 he pioneered the use of
meta-analysis in publishing reviews of the impact of cooperative, competitive, and individualistic on achievement/productivity and on
interpersonal attraction. In 1989 he and his brother published a book,
Cooperation and Competition: Theory and Research, which contained a series of meta-analyses (currently being revised with updates)on many of the dependent variables relevant to Social Interdependence Theory.
Extension of theory Social interdependence theory was originally formulated by
Morton Deutsch in 1949. While Deutsch created the basic structure of theory, many of its implications were left unexplored and several of its assumptions were unchallenged. In his research, Johnson explicated the conditions underlying effective cooperation and constructive competition. In the 1989 meta-analysis book, and in 2005 he and his brother published an update of the theory in
Psychological Monographs Program of research Over the past 40 years, in collaboration with his brother and colleagues, Johnson has published over 100 research studies on the impact of cooperative, competitive, and individualistic efforts on a wide variety of outcomes, higher-level reasoning, motivation, perspective-taking, social development, social skills, interpersonal attraction (among relatively homogeneous individuals, individuals from different ethnic and cultural groups, and handicapped and nonhandicapped individuals), social support, self-esteem, and psychological health. He conducted a program of research to identify the factors that mediate the impact of cooperation, such as
positive interdependence, individual accountability, promotive interaction, social skills, and group processing. In addition, he has conducted a series of studies identifying the conditions under which competition results in constructive outcomes.
Implementation In the mid-1960s Johnson began training educators in the use of cooperative, competitive, and individualistic learning.
Cooperation in the Classroom (first published in 1984 and now in its eighth edition), and
Leading the Cooperative School (first published in 1989 and now in its second edition). Overall, he has written 33 other books for teachers, professors, and administrators on how to use cooperative learning. Johnson's books and training materials have provided guidance for using cooperation to educators all over the world. Cooperative Learning Centers have been established in many countries around the world, as the Hong Kong Cooperative Learning Center, which had Johnson conduct a seven-year project to train faculty from all seven Hong Kong universities and many mainland universities in the use of cooperative learning. Cooperative Learning Centers can be found in Shanghai, Japan, Cyprus, Norway, Italy, and at multiple places in the United States and Canada. ==Constructive controversy==