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Since psychology professionals have a moral and ethical responsibility to evaluate the effectiveness of different products and services aimed at improving psychological/physical well-being, development, and/or performance, the purpose of the present investigation was to evaluate the effectiveness of the Winners for Life book (and accompanying Parent Instructor Guide) on improving a variety of psychological factors for at-risk adolescents. Participants were 96 pairs from the Big Brothers/Little Brothers, Big Sisters/Little Sisters program. Participants were randomly assigned to one of three conditions: Winners for Life book, Winners for Life book plus instructor guide, or control group. Each group participated in a 12-week intervention program. Results revealed that both Winners for Life book conditions resulted in greater increases in self-esteem, self-perceived goal setting ability, optimism, and hope than the control condition, with the Winners for Life book plus instructor guide condition achieving the greatest improvements.
Robert Weinberg is with the Department of Kinesiology and Health at Miami University, Oxford, OH. E-mail: firstname.lastname@example.org. Robert Neff and Michael Garza are with the Psychology Department at Brookhaven Community College in Dallas Texas.