ERIC Number: ED037249
Record Type: RIE
Publication Date: 1969-Aug
Reference Count: 0
A Replication and Extension Study on N-Length, Inhibition and Cooperative Behavior with a Mexican-American Population. Part of the Final Report on Head Start Evaluation and Research: 1968-69 to the Office of Economic Opportunity.
Manning, Brad A.; And Others
A study of cooperative behavior (social learning) and N-lengths using Negro subjects was replicated and extended. Subjects were 100 Mexican-American children, 4 1/2 to 6 years old. N-length was defined as the number of nonreinforced trials spaced between reinforced trials and intertrial reinforcement (ITR), introduced between regularly scheduled trials. The experimental situation was a two-person, two-choice game in which each subject had control over the other player's gain and could choose either to cooperate or not to cooperate. The experiment consisted of two phases: the acquisition phase (defined as the first 30 cooperative responses), and the 30 trial extinction phase. The subjects were divided into five groups of 20 each. The first four groups received 50% partial reinforcement for the first 30 responses and ITR in N-lengths of 1, 2, 3, and four. The fifth group received continuous or 100% reinforcement. The findings matched those of the previous study in that the 100% group was least resistant to extinction and the N1-length group was most resistant to extinction. However, in contrast to the Negro study, in the present study N-length groups did not differ in acquisition and increased their cooperation as a function of trials. (MH)
Publication Type: N/A
Education Level: N/A
Sponsor: Office of Economic Opportunity, Washington, DC.
Authoring Institution: Texas Univ., Austin. Child Development Evaluation and Research Center.