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Direct linkFisher, Ryan A. – Journal of Research in Music Education, 2014
The purposes of the study are to describe characteristics of the voice change in sixth-, seventh-, and eighth-grade choir students using Cooksey's voice-change classification system and to determine if the singing self-efficacy of adolescent males is affected by the voice change, grade level, and experience. Participants (N = 80) consisted of…
Descriptors: Middle School Students, Singing, Males, Early Adolescents
Thompson, Clarissa A.; Opfer, John E. – Child Development, 2010
How does understanding the decimal system change with age and experience? Second, third, sixth graders, and adults (Experiment 1: N = 96, mean ages = 7.9, 9.23, 12.06, and 19.96 years, respectively) made number line estimates across 3 scales (0-1,000, 0-10,000, and 0-100,000). Generation of linear estimates increased with age but decreased with…
Descriptors: Experimental Groups, Grade 6, Grade 2, Age Differences
Fisher, Ryan A. – Journal of Research in Music Education, 2010
The purposes of this study were to compare the age of onset of the voice change in African American, White, and Hispanic male students, as well as to describe characteristics of the changing male voice in fourth-, fifth-, and sixth-grade students, using Cooksey's maturation stages. Participants included volunteers from two urban elementary…
Descriptors: Ethnicity, Elementary Schools, Singing, Middle Schools
