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Perfectionism and mood states are psychological constructs which according to the results of recent studies, have substantial role in sport performance. The purpose of this research was to determine and compare therelationship between sport perfectionism and mood states inteam and idiviual sports athletes. The Research method used is descriptive with a correlative approach. Based on random sampling, 70 athletes in individual fields and 70 in team fields have selected from national super league. for data collection, two questionnaires of sport perfectionism, Dunn,et al (2006) and Brums, Terry et.al (2003) were used and for data analysis took Pearson correlation coefficient, independent t-test and Z Fischer. The results indicated that in team and individual fields, there was a positively significant relationship between concern over mistakes as a negative aspect of perfectionism and scores obtained on negative mood before competition, while such relationship was negative for vigor. There was no significant relationship between perfectionism of athletes of team and individual but depression and fatigueof team athletes significantly was better than individual athletes. Finally the results of Z Fischer test showed no significant difference between perfectionism correlation coefficients and mood states before competition in team and individual athletes. Negative performance via negative reaction mechanism regarding to error and mistake causes negative mood while positive perfectionism due to motivational effects results in improving positive mood.

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The aim of this research was to determine the effect of different training environments, type of skills and interactions on open and closed skills. The statistical  population was all students living in dormitories of Tehran University in the 88-89  academic year. The sample was 60 people selected based on convenience sampling methods among students who had no experience in badminton skills (Long Service and clear). Based on pre-test subjects were matched in six groups of ten persons (noncompetitive, competitive, and combined). All of six groups performed a practice in defined medium for 10 sessions and each session were performed 40 times. The long-service tests were used to measure open badminton skill and clear test was performed to measure closed skill. Test scores of subjects were computed based on the mean of ten hits score. Descriptive statistics were used to determine the mean and standard deviations and to test research hypothesis, a two-way analysis of variance (ANOVA) with repeated measures and independent t-test were utilized. The result of ANOVA showed that exercise in each of the training environment increased acquisition and retention of each skill, but the levels are different (p<0.05). Also, Factorial ANOVA showed that the skills and environments does not have meaningful effects on acquisition and retention of skills while each skill interacts significantly with the training environment (p<0.05). In addition, exercising each of the skills in the same environments had different levels of acquisition and retention.