As a scientist,Carl is concerned with the intensity of lights in the modern human environment.In his research project,Group A consists of volunteers who have agreed to sleep each night for a week with a 150 watt light bulb hanging over their bed.Group C will sleep in their usual environment.Alertness,blood pressure,respiration rate,and muscle tension will be sampled in the morning and evening.Carl is studying:

Question

As a scientist,Carl is concerned with the intensity of lights in the modern human environment.In his research project,Group A consists of volunteers who have agreed to sleep each night for a week with a 150 watt light bulb hanging over their bed.Group C will sleep in their usual environment.Alertness,blood pressure,respiration rate,and muscle tension will be sampled in the morning and evening.Carl is studying:

Answer 1

What are your alternatives?

Effect of sleep variables on waking variables?

Answer 2

psychophysics

Answer 3

Carl is studying the effects of light intensity on human physiology and sleep patterns. Specifically, he is interested in how the presence of a 150 watt light bulb over the bed affects various parameters such as alertness, blood pressure, respiration rate, and muscle tension.

To conduct his research, Carl has divided his participants into two groups: Group A and Group C.

Group A consists of volunteers who will sleep each night for a week with a 150 watt light bulb hanging over their bed. This group serves as the experimental (or treatment) group, as they will experience the higher light intensity during their sleep.

On the other hand, Group C represents the control group. These participants will sleep in their usual environment without any changes. This group provides a baseline comparison for Carl's study, as they will not be exposed to the 150 watt light bulb.

In order to measure the effects of the light intensity, Carl will collect data on several physiological parameters. This includes monitoring the participants' alertness levels, blood pressure, respiration rate, and muscle tension. These measurements will be taken in the morning and evening, likely before and after the participants wake up and go to bed.

By comparing the data collected from Group A (those exposed to the 150 watt light bulb) and Group C (those sleeping in their usual environment), Carl will be able to analyze any differences in the physiological responses. This will help him understand the impact of light intensity on human sleep and overall well-being.