The data are graphed. Figure 1 . Illustration of student sitting on the desk and the second student sliding the reflex hammer along the meter stick. The view is looking at the grid in the same direction as the camera. The sample data set included here consists of only twelve strikes, four samples showing slow speeds, four moderate speeds, and four higher speeds.
Speed is reflected by the number of frames it took for the reflex hammer to strike.
The samples occur in clumps and were not continuous. What students should see is a response using much less force because the stretch receptors are much tighter and need less stimulation to respond. Resources Tortora, G.J. and S.R. Grabowski. Principles of Anatomy and Physiology , Eighth Edition. Harper Collins College Publishers, 1996.