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Geldhof, G. John; Gestsdottir, Steinunn; Stefansson, Kristjan; Johnson, Sara K.; Bowers, Edmond P.; Lerner, Richard M. – International Journal of Behavioral Development, 2015
Intentional self-regulation (ISR) undergoes significant development across the life span. However, our understanding of ISR's development and function remains incomplete, in part because the field's conceptualization and measurement of ISR vary greatly. A key sample case involves how Baltes and colleagues' Selection, Optimization,…
Descriptors: Measurement Techniques, Likert Scales, Construct Validity, Reliability
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Ham, Ok Kyung; Lee, Young Ja – Journal of School Health, 2007
Background: Smoking is popular among Korean male high school adolescents, with the prevalence of 20.7% differing markedly with the type of school, being 16.3% and 27.6% in academic and vocational technical high schools, respectively. The purpose of this study was to identify significant variables that predict stages of smoking cessation among…
Descriptors: Vocational High Schools, Smoking, Metropolitan Areas, Predictor Variables