The effects of associative and dissociative focus of attention and level of skill in tennis service of volleyball under psychological pressure

The aim to the present project is to study the effects of associative and dissociative focus of attention and skill level on the accuracy of tennis service of volleyball under pressure. This research is a semi-experimental one which was fieldimplemented. 60 female student were selected from Azad Islamic University of Najafabad، between ages 18 to 30، whom participated in course of physical education2، and all were right-handed knowing the accurate technique of tennis service of volleyball; they participated in this research by access sampling. After identifying the trait anxiety with SCAT inventory and emitting the individuals with high and low trait anxiety، in order to match the participants، considering their levels in the pre-test، they were divided into two high and low skill level groups consisting 30 members، and each group randomly into two sub-groups (15 members each group) of associative and dissociative focus of attention. The subjects، service accuracy was measured in pressure conditions using AAHPERD test; and to make pressure condition method of figurative comparison was used. The results of agents variance analysis suggested that the effect skill level (F=1. 07، P=0. 0001)، and the interacting between attention focus and skill level، on the accuracy of tennis service in volleyball under pressure condition were signification (F=92. 51، P=0. 0001). These results indicated that the participants with low skill level in dissociative attention to exercises، and those with high associative attention to exercises، were more obstructed. These results indicated that performance under psychological pressure had been impacted on accuracy tennis service.