... research were the frequency, percentage distribution, the weighted means, Regression and the One – way ANOVA. Based on the data gathered, it was found that the perception of both managers and ... impact on the performance from the perspectives of individuals and groups, such as cognitive, self – efficacy, motivation and group norms. In fact, the paper applies the theory of psychological ... performance of the specialists working in the Youth care at Helwan University‖ Waleed Ahmed Abdel – Razek (2011) aimed at identifying the level of the factors affecting the effectiveness of the...