Size test app for iPhone and iPad

Testing sensorimotor reaction. Perception of the objects size.
* This app allows you to determine how quickly the user responds to resize an object. Select one of test modes (Increase, Decrease, Increase/Decrease) and press on the screen. When you resize the object, terminate the contact. The resulting test time demonstrates the ability of the user to distinguish between changing the size of an object.
* Results of testing. At the make of 12 attempts the result includes: average value (ms), normality of distribution of the received results according to the Shapiro-Wilk criterion (W).
* This app can be used by athletes and teachers of specialized educational institutions in their scientific research.