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Hattie, John | 1 |
Tellado, George S. | 1 |
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Information Analyses | 1 |
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Tellado, George S. – Evaluation and Program Planning: An International Journal, 1984
Sixty-six seventh, eighth, and ninth graders were selected by guidance counselors to participate in a problem-solving skills training program. Students receiving training demonstrated better problem-solving skills and a higher level of self-esteem than control group students. (Author/BW)
Descriptors: Age Differences, Evaluation Utilization, Junior High Schools, Locus of Control

Hattie, John; And Others – Review of Educational Research, 1997
This meta-analysis examines the effects of adventure programs on diverse outcomes such as self-concept, locus of control, and leadership. Analysis of 1,728 effect sizes from 96 studies shows that effect sizes varied substantially and improved as the length of the program and ages of the participants increased. (SLD)
Descriptors: Adventure Education, Age Differences, Effect Size, Elementary Secondary Education