The present investigation combines the methodology of 2 previous works, one by the author involving Ss making a choice between a smaller immediate reinforcement vs. a larger reinforcement promised at a later time, and a Social Responsibility Scale (SRS). The purpose of the study was to test the hypothesis that willingness to postpone gratification (choose delayed reinforcement) was positively related to social responsibility and negatively to delinquent behavior. Ss were Negro children of Trinidad, from a public school and a reform school. Choice for immediate reward was seen to be related to low scores on the SRS scale and for poorer estimation of time. Results are related to previous work and to a cross-cultural frame of reference. From Psyc Abstracts 36:01:3HJ01M. (PsycINFO Database Record (c) 2006 APA, all rights reserved)