"For perceptual motor abilities we had done four different tests. The tests were dealing with are; multiple limb coordination by juggling a soccer ball with feet, aiming through shooting a basketball, reaction time by clicking a stop button when the computer screen turned colour, and arm-hand steadiness where subjects had to hold a pen in a ring without either touching each other."
We used four different tests to assess perceptual motor abilities (is the exactly the wording you want to use, it seems a little bit... slippery to me); and then clearly state you tests. How's that sound?
Although its not what you asked to be critiqued on, did you account for the fact that your first two tests are learned skills. For example, someone who played basketball in middle school might outperform, by a wide margin, an elite Archer or a pro baseball pitcher.