Ali Abbas Zadeh, Hamid Reza Taheri, Ali Heirani, Bahram Yousefi,
Volume 2, Issue 3 (8-2012)
Abstract
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.
Hossein Eydi, Rahim Ramzaninezhad, Bahram Yousefi, Seyyed Nasrollah Sajjadi,
Volume 2, Issue 4 (12-2012)
Abstract
It is widely recognized that the performance measurement of organizations should help them in their strategic decisions and in their capacity to evaluate their successes. This study uses the Competing Value Framework )CVF) for measurement the organizational effectiveness of four federations of basketball, handball, taekwondow and Weight lifting. Those federations were selected according to a goal oriented and non casual method that all of sport federation stakeholders (professional employee, president, and vice-president, secretary, coaches, national athletes and referees) selected as a sample (N=236) and 167 people participated in research (70 0/0). Self-management OE questionnaire in sport conducted according to survey of literature and using exploratory factor analysis in study showed the 62 questions that evaluate four quadrant and eight sub factors of human relations model (Flexibility, Resources) Internal process model (organizational interaction, Stability) open systems model(worked force cohesion, worked force expert) and rational-goal model (Planning, Productivity), according the CVF. Result showed that between four quadrants of effectiveness in sport federations, rational goal model (Planning, Productivity) has a most important quadrant. Descriptive result of eight factor of effectiveness in CVF showed that factors of flexibility, planning, organizational interaction and human resource cohesion basketball, in factor of resource, productivity and human resource expert the tekvandow and in a stability factor Weight lifting has a good state in comparison of other federations.
