معامل ثبات الاختبارات المهارية للاعبي الشباب بالكرة الطائرة باختلاف الفترة الزمنية لإعادة تطبيقها

الملخص EN

Testing and measurement are considered one of the most basic and essential topics in all fields especially in physical education.

Tests are a way to collect data and information to show the behavior or performance in a particular athletic stance.

The task of the tests is to reach athletes to the highest levels and achievements which elevate their level to achieve high athletic level.

so ,scientists are trying to devise tests and means to benefit athletes in particular, for making them reach the highest advanced levels .Therefore, the researcher aims to study and determine the best and most appropriate period of time for the tests through the replay time after 7 days and again after 14 days of two groups of young players, and know the difference between these two groups in the time period for re-testing because the reliability coefficient refers to the accuracy and thoroughness and consistency .

The method used to evaluate the mistakes when the test is applied twice for different time periods, and the researcher used the experimental method on a sample of young players of Volleyball whose number is 12.

The sample was divided randomly by lot to the first two sets - re-test after 7 days and the second - the retest after 14 days and after a tribal tests and then later re-test on the two groups.

The researcher has found that the first group is better than the second set because of the spacing of the period.

In the short period of time, the player has to remember the test because it is a short period compared to the period of 14 days