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Today, the organizational culture variable is the main focus of analysis in many organizational studies. In the last years, this construct, has found special status in the field of sport management researches. This study aims to validate and investigate the psychometric properties of organizational culture assessment instrument (OCAI) based on the competing values framework model (CVF) in Iranian sport organizations (federations). The methodology of the present research is based on a correlation study (A factor analysis type of covariant matrix or correlation through principle components analysis method). The statistical population includes 52 sport federations (703 sport experts). In confirmatory factor analysis (CFA) method, the number of samples was determined according to the number of variables and 253 subjects (83.77%) were selected in a stratified random sampling method as final samples. The data were collected through OCAI and the construct validity, also, analyzed using LISREL 8.70 software and a CFA method.  The results obtained showed that OCAI questionnaire was a multi-dimensional construct and the four OCAI factors were confirmed to be as cultural profiles: Clan (6 items), Adhocracy (6 items), Market (6 items) and Hierarchy (6 items). The other result, confirmed the OCAI reliability suitability by computing internal consistency through cronbach &alpha test (r=0/86). Considering the confirmation of psychometric properties of OCAI and cultural profiles in factor analysis, organizational culture assessment instrument (OCAI) based on the competing values framework model (CVF) seems to be an appropriate instrument and theoretical framework for assessing the organizational culture in Iranian sports organizations (federations). Therefore, it is suggested that sport management researchers attempt to assess the organizational culture by using OCAI questionnaire in Iranian sport organizations.

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Motor learning or the acquisition of coordination is a process of searching for stable functional coordination patterns, into which a system can settle during a task or activity. Human as complex creatures can choose the best pattern based on conditions within different coordination patterns and also achieve goals of tasks. So the purpose of this study is to determination the effect of a Nonlinear Pedagogy approach for the effectiveness of the movement and acquisition of skills. Accordingly, in this study 14 participants (with the average 19.64 and SD 0.74) are taught the short backhand serve of badminton with using linear and nonlinear pedagogy approaches. Linear approach Based on traditional Viewpoint using the descriptive methods and repetive instructions. On the other hand, nonlinear Pedagogy Approach Based on the ecological dynamics theory using manipulation of task constraints especially task constraints including equipment and rules Planned and conducted. Performance accuracy were selected to analyze further selections and used analysis of covariance to measure the effect of the independent variable measured. The test significance level was considered P <./ 05. Despite the progress of both groups to the pre-test, no difference was observed between the two groups in accuracy scores (F=0.092 and p=0.767) and both were equal to achieve results of the task as an indicator of skill acquisition. Our findings indicate that nonlinear pedagogy approach, resulted from theory of ecological dynamics, consider the complexity of Acquisition the skill and inherent tendency of individuals with providing movement affordances. Also, this approach can be effective in the fulfilment of goal tasks.

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