Mohsen Vahdani, Reza Sheikh Yoosefi, Mehrdad Moharramzadeh, Misagh Hoseini Keshtan, Jamshid Jalilvand,
Volume 2, Issue 3 (8-2012)
Abstract
The present study examined the relationship between coach's leadership styles and group cohesion in the individual and group teams participating in the 10th sport domestic universiade of male students. 321 out of 1906 students selected as sample of this study. Athletes completed two instruments in this study Leadership Scale for Sport (LSS, Chelladurai & Saleh, 1980) and the Group Environment Questionnaire (GEQ, Carron, Widmeyer, & Brawley, 1985). The LSS contains 40 items that measures five dimensions of leadership styles and The GEQ with 18 items assess the two dimensions group cohesion. Cronbach's alpha coefficient was utilized to examine the internal reliability of LSS (r=0.85) and GEQ (r=0.72). Data were analyzed with one-sample kolmogrov-Smirnov, repeated measures ANOVA, Bonfferoni post hoc test,Pearson Correlation coefficient, and T-test(for independent groups), significance level of P&le0.05. Results showed coaches exhibited higher in training and instruction and lower in autocratic style among both interactive group teams and co-acting teams. Finally, there are no significant differences in task and social levels of interactive group teams and co-acting teams. Results showed coach’s styles of training and instruction, democratic, social support and positive feedback were all positively correlated to group cohesion and autocratic style negatively correlated to group cohesion.
Dr Rahim Ramezaninezhad, Dr Mehr Ali Hemati Nezhad, Dr Mohamad Rahim Ramezanian, Mr Mohamad Hasan Gholizadeh, Mr Misagh Hoseini Keshtan,
Volume 6, Issue 12 (11-2016)
Abstract
The purpose of the present study is to investigate the impact of managerial
changes on the performance of football clubs in Iranian premier league. The
statistical population of present study contains all clubs which participated in 12
seasons of Iranian football clubs premier league from 2001 to 2013. The whole
data was extracted from the archive of premier league organization and Foolad
Mobarakeh Sepahan sport club. Improvement or degradation of football clubs in
each season compared to the previous season based on managerial changes or
stability has been investigated. The data was analyzed with one way ANOVA with
Gabriel post hoc test, and independent sample t test in significant lower than 0.05.
Results revealed that managerial stability had significant effect on improvement of
the performance, and successive changes of executive managers had significant
impact on degradation of performance. Results showed that managerial changes
caused a 2.48 decline in their rank on the league schedule, and managerial
stability caused a 1.00 improvement in their rank on the league schedule.
Generally analysis of results supported the hypothesis that managerial stability
provides enough time for implementation and realization of long term and short
term goals and final improvement on clubs performance.
