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
a
You might also like to view...
Learning in which a previously neutral stimulus becomes capable of triggering a reflexive response is called
a. operant conditioning. b. classical conditioning. c. instrumental conditioning. d. stimulus-response learning. e. spontaneous recovery.
The Oregon Death with Dignity Act
a. was overturned by the US Supreme Court in 1997. b. was defeated by Oregon voters when placed on the ballot in 1997. c. requires the patient to be 18 years or older and a resident of Oregon. d. leaves the decision up to the physician.
Which domain is NOT part of the Research Domain Criteria Project?
A) cognitive systems B) systems for social processes C) psychodynamic processes D) arousal and regulatory systems
________ false confessions occur when people are pressured to admit guilt but privately believe in their own innocence
FIll in the blank with correct word.