how do i reword this purpose staetment for my experiment?

Question

Lab Manual:
Purpose: To measure a physiological quantity,your reaction time to both audio and visual stimulus.

Rewording: To scientifically measure the test subjects reaction time in both audio and visual stimulus.(is this good?)

Answer 1

You really don't need the word "scientifically". There should be an apostrophe at the end of the word "subjects", or before the last s, depending upon how many subjects there are.