Get on all fours on your mat with your head parallel to the floor. Exhale, arch your back and tuck your chin to your chest. Inhale and drop your stomach towards the ground while lifting your head as much as you can, stretching your neck. Describes what stretch?

What makes the yardstick test a direct measurement of reaction time? a. the further the yardstick falls, the slower the reaction time. b. yardsticks have numerical markings for length. c. yardsticks are designed to measure reaction time. d. all of the above select the best answer from the choices provided.