Employment Methodology of Proposed Specific Agility Tests as a Basis for Planning and Controlling Specific Physical Preparation of Badminton Juniors Experimental Guiding Study for Coaches

The test aims at measuring the effectiveness of return shots in random from the automatic shuttlecock shooter machine (SIBOASI S3025), the player takes the base position in midcourt setting and modifying the shooter to 20 badminton per minute Fig. (7) lobbing 20-60 (1:3) thus all the shots fall in random on all parts of court ,the player moves suitably to return all shots to the opponent's Curt, the effectiveness of the player is measured (%) dividing successful shots into libeler shots using the equality  the number of good shots/20x100. 
            To get the final form of the proposed tests we should see the experts' opinions and do practical experiments to get (Validity, Reliability and Objectivity) to achieve the survey goals .The experts (8)agree to the survey (1 completely disagree: 5 agree) and this ensure the suggested content-logical validity for applying. There's a comparison study between applied test & T-drill test (Mackenzie, 2005), as an outside-critical test to measure agility, Fig. (8) to estimate the validity. The player should stand on the high starting position on T (cone A), run forward (10m)to touch the first cone upon the angle between the base and the horizontal segment (cone B), move (5m) inside steps on right to (cone D), then move (10m) in side steps to touch (cone C)on left, after that move inside steps to (cone B), Run backward (10m) to the end point (cone A), recording time (1/10) sec. (37: 70-71). To compare the results of suggested tests for agility with results of time ground contact during jumping (average of four jumps). The Just Jump Test (SKU7610) from the power systems (Fig. 9) which contains a square jumping pad (27 inch) connected with hand held computer (Marei & Salem 2016) (38). The comparison deals with the higher and lower Quartet for (specific or unspecific players) to get discrimination validity, all these help recognizing the test ability to distinguish the different levels of juniors in specific agility.