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Direct linkAdibsereshki, Narges; Abkenar, Somaye Jalil; Ashoori, Mohammad; Mirzamani, Mahmood – Journal of Intellectual Disabilities, 2015
The purpose of this study was to compare the effectiveness of two kinds of reinforcements, tangible reinforcements and social reinforcements, on the academic achievement of eighth-grade female students with intellectual disabilities in the science subject. The study was an experimental method by pretest, with a control group. The participants of…
Descriptors: Academic Achievement, Middle School Students, Intellectual Disability, Females
Hilt, Lori M.; Nock, Matthew K.; Lloyd-Richardson, Elizabeth E.; Prinstein, Mitchell J. – Journal of Early Adolescence, 2008
This study examined rates, correlates and an interpersonal model of nonsuicidal self-injury (NSSI) among a sample of 508 sixth, seventh, and eighth graders. Questionnaires assessing NSSI, related health-risk behaviors, and relationships with parents were administered two times over an 11-month period. Overall, 7.5% reported engaging in NSSI within…
Descriptors: Children, Longitudinal Studies, Self Destructive Behavior, Early Adolescents
