Dr. Hines 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. Hones 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. Hines measures the level of depression for the people living in the houses. In this example, the level of depression is the ____ variable.
a. dependent
b. extraneous
c. correlational
d. independent
Question 2
The process of making an inference that the results observed in a sample would hold in the population of interest is called ____.
a. generalizing
b. deducing
c. modeling
d. inducing