Dr. Ramos 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. Ramos 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. Ramos measures the level of
depression for the people living in the houses. Assuming that the study uses people from different age groups, participant age would be a(n) ____ variable in the experiment.
a. dependent
b. independent
c. extraneous
d. confounding
c
You might also like to view...
Breast-feeding provides benefits to mothers such as reducing the risk of breast and ovarian cancers, building bone strength, reducing the risk of osteoporosis, and
a. helping shrink the uterus after delivery. b. reducing the chances of becoming obese. c. creating immunity to common illnesses, such as colds. d. There are no benefits for mothers, just for infants
To qualify as a supercentenarian, an individual must be
a) 100 years old b) 105 years old c) 107 years old d) 110 years old or older
Describe the resources that foster resilience, or the capacity to overcome challenges and adversity, in emerging adulthood
What will be an ideal response?
The ___ is the largest region in the human brain
a. pons b. prefrontal cortex c. cerebellum d. thalamus