Author Question: Dr. Fowler is interested in studying how indoor lighting can influence people's moods during the ... (Read 131 times)

mckennatimberlake · **on:** Jun 19, 2018

Dr. Fowler is interested in studying how indoor lighting can influence people's moods during the winter. A sample of 100 households is selected. Fifty of the homes are randomly assigned to the bright-light condition where Dr. Fowler replaces all the lights with 100-watt bulbs. In the other 50 houses, all the lights are changed to 60-watt bulbs. After two months, Dr. Fowler measures the level of depression for the people living in the houses. In this study, the independent variable is the ____.

a. brightness of the lights
b. level of depression
c. houses with 100-watt bulbs
d. houses with 60-watt bulbs

Question 2

The list of accessible members of the population is called a(n) ____.

a. sampling frame
b. target population
c. participant list
d. census role