Dr. Fowler is interested in studying how indoor lighting can ...

[mckennatimberlake]

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

[Smiles0805]

Answer to Question 1

a

Answer to Question 2

a

[mckennatimberlake]

Excellent

[Jsherida]

Gracias!