تقدير الذات وعلاقته بالسلوك العدواني لدى التلاميذ المتأخرين دراسيا بالمرحلة الإبتدائية
The study aimed to detect the relationship between both self-esteem and aggressive behavior of underachievers of primary school, and to identify the extent of differing self-esteem and aggressive behavior of underachievers according to the type (male-female), and the sample of the study consisted of (30) pupils (15) male and (15) females between the ages of 10 and 11 years of pupils of the fifth grade primary school they belong to the late childhood stage, the study tools consisted of the self esteem scale (prepared by the researcher) and the aggressive behavior scale by Nazmi Mostafa 2009. The results of the study found a negative correlation between self-esteem and aggressive behavior for underachievers. The results of the study also confirmed the existence of a statistically difference between the grades (male - female) on their overall grades of self-assessment measure in favor of males, and there is a statistically d difference between the two grades (male - female) on their overall grades of the measure of aggressive behavior towards males. (Published Abstract)