The Effectiveness of Group Plays on Psychomotor Development of Educable Mentally Disabled Preschool Boys in Preschool in 2011

The purpose of this research is to determine the effect of group plays on psychomotor development of educable mentally disabled boys (aged 5 to 7 years old). The statistical population of this study includes all boys with educable mental disability in preschool. The sample consists of 20 boys who are randomly selected from three special schools in Isfahan city. Then they are randomly assigned into two experimental and control groups. The instrument used in this research is Lincoln Oseretsky Test of Motor Proficiency and Education Group Play. A pretest is administered on both the experimental and control groups. Then education play training is employed on the experimental group for one mouth and 12 sessions. A post test is administered on both groups at the end of training. The results show there is a significant difference between the mean scores of Lincoln Oseretsky Test of Motor Proficiency in the experimental and the control groups in the post test (p<0.001). The effect size is 69%. It is therefore concluded that group play could increase psychomotor development in educable mentally disabled boys. So we can use group plays on psychomotor development in preschool children in addition to another methods.