Peterson, Mayfield2012-03-132012-03-1319701970Source: Dissertation Abstracts International, Volume: 72-04, Section: A, page: .http://hdl.handle.net/10393/21441http://dx.doi.org/10.20381/ruor-8958Abstract not available.101 p.Psychology, Behavioral.Education, Educational Psychology.Personality, self-concept, study methods and attitudes toward school, and levels of achievement of adolescents in grades ten, eleven, and twelveThesis