Question

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

Answer 1

A.

The further the yardstick falls, the slower the reaction time.

Step-by-step explanation:

Answer 2

Correct answer choice is :

A) The further the yardstick falls, the slower the reaction time.

Step-by-step explanation:

A yardstick is a straightedge practiced to actually measure distances of up to one yard high. Yardsticks are flat planks with indicating at regular periods. In the metric system, a related device measuring up to one meter is named a meter-stick.