QUESTION 4 A researcher wants to learn the effects sleep deprivation has on a person's reflexes. The volunteers were broken into two separate groups. In the first group, forty volunteers were only allowed to sleep for 2 hours a night for five days in a row. In the second group, forty volunteers slept their normal sleep patterns for the same five days. On the sixth day, the researcher tested each participant on his/her reflexes. Control Group: Experimental Group: Treatment: Variable of Study: