DOCUMENT RESUME EC 041 653 Madsen, Millard C.; Connor, Catherine Cooperative and Competitive Behavior of Retarded and Non-Retarded Children at Two Ages. California Univ., Los Angeles. Early Childhood Research Center. Office of Economic Opportunity, Washington, D.C. [72] 12p. MF-$0.65 HC-$3.29 *Behavior Patterns; *Elementary School Students; *Exceptional Child Research; *Interpersonal Relationsh...