Dr.Jones 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.Jones 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.Jones 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

Quizplus · Accepted Answer

The level of depression is the dependent variable because it is the outcome that is being measured in the study. The independent variable is the type of lighting (bright-light condition or 60-watt bulb condition) that is being manipulated by the researcher.

DrJones Is Interested in Studying How Indoor Lighting Can Influence