2Astin AW. Student involvement :Adevelopmental theory forhigher education. Journal of College Student Personnel,1984;25:297-308
3Finn JD, Floger J, Cox D. Measuring participation amongelementary grade students.Educational and PsychologicalMeasurement, 1991; 51: 393-402
4Mulryan, CM. Fifth and sixth grader' s involvement andparticipation in cooperativesmall groups in mathematics.The Elenentary School Journal, 1995; 95: 297-310
5Kennedy E. A multilevel study of elementary male Blackstudents and White students.Journal of EducationalResearch, 1992;86:105-110
6McManus SM, G, ettinger M. Teacher and student evaluationof cooperative learningand observed interactive behaviors.Journal of Educational Research, 1996 ;90:13-22
