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The aim of this study was examining the effect of knowledge of results presentation (after successful and unsuccessful trials), on learning and error detection capability in force-produce task. Sixty under graduated students (range age 21.6±4), participated in this study and in order to KR presentation, divided in three groups. One of the groups received KR after successful trials, the other groups after unsuccessful trials. The control groups did not receive any KR. All the participants throughout the trials in the acquisition and retention phases were error estimated. The task was to produce the 70℅ of maximum force of their right hands, by gripping a dynamometer. After data collection, the analysis conducted by using ANOVA repeated measurements for acquisition period, and one way ANOVA for retention test. In acquisition, results showed no significant differences between the first and second groups, on performance and error detection capability of force-produce task (P> 0.05). However in retention (no KR), there was significant differences between two groups (P&le0.05), means that the first group which received KR after successful trials was better than the second group as well as control. This pattern of results suggests that if people receive the KR after successful trials than unsuccessful, the better learning and error detection capability will occur.

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The purpose of the present study was to determine the relationship between sport success and kinesthesia in male athlete college students. The methods used in the study was descriptive correlation. 100 students athletic in different fields from students’ of state university of Arak in 2012-2013 with the mean age of 21/80±1/94 purposefully using random multistage sampling were selected. (34 students in volleyball, 33 students in badminton, 33 students in wrestling). To collect data, with Personal information questionnaire, Ego orientation in sport questionnaire (Duda & Nichols, 1989), Zhecoofski dominant-hand's angle accommodation tests (1988) and Ablacova force control dominant-hand's (1990) were used. Data was analyzed by person's correlation test, multilevel regression analysis and the Analysis of variances. Shown in findings, volleyball players got a better score than other athletes in terms of sport success and kinesthesia. Also analysis of variances showed a significant relationship between sport success and kinesthesia. According to the results, sports of which kinesthesia of the dominant hand was their main reason of success had better kinesthesia and athletic success.

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When an athlete experiences a failure or a success naturally think about its reason(s) and actually search the responsible for the situation. Therefore, the purpose of this descriptive - correlational study was surveying attribution and motivation styles of elite and sub-elite female athletes in individual sports. The statistical population was female athletes in swimming, badminton, karate, taekwondo, table tennis and archery sport teams from which 120 samples selected availably. Data collected with the Attribution Style Questionnaire (ASQ) and Sport Motivation Scale (SMS).Data was collected and analyzed using multivariate analysis of variance (MANOVA) and Pearson correlation coefficient test at a significance level of 0.05.  The results showed that elite and sub-elite athletes' attribution style was different significantly (P ≤ 0.05). Also, there were not significant differences between amotivation levels of elite and sub-elite athletes (P ≥ 0.05). Results indicated that there were no relationship between elite and sub-elite athletes' attribution and motivation styles (P ≥ 0.05). Overall, it can be concluded that there were significant differences between elite and sub-elite athletes' attribution styles and motivation levels, (except amotivation) and not significant relationship between attribution styles and motivation levels in this two women group participating in individual sport.