Meta-analysis of the Relationship between Economic Factors and Performance in Sports Events

Recently, the competition between countries to gain medals in international competitions and rankings of countries based on scores, has taken a high intensity and this has led thes researchers to begin to explore affecting socio-economic and other factors in sporting success in various competitions including the Olympic Games. However, the growth of research in this field and distribution of information, dominance of all aspects of this area is impossible. Hence, the combination of the results of previous conducted studies to obtain an overview research topic is more useful than the definition of new research projects. In the present study, purposive sampling (snowball sampling) was used. After reviewing the articles about the relationship between economic factors and sport performance, 20 studies were selected. To analyze the data collected, a comprehensive meta-analysis software program was used. The results showed that the mean of effect size of the relationship between economic factors and performance in sports events was 0.415. Since the effect size of the estimated is significant at 95% level, economic factors effect on sports performance.