Dr. Bishop is studying the effects of a drug on memory. Half of his participants will receive the drug, while the other half will receive a placebo. The pills the two groups of participants will take look exactly the same. Dr. Bishop hopes that the use of a placebo will ____.
a. allow him to have control over the dependent variables
b. show if memory improvement is based on participant expectations
c. create a double-blind design for his research
d. eliminate the chance of random variables confounding his experiment
Question 2
In research, uncontrollable factors such as the temperature of the room, the mood of the participants, and chance effects are considered ____ variables.
a. independent
b. random
c. dependent
d. control
Field experiment on effects of predation on male guppy colouration
Effects of Varying Ratios of Cannabidiol and THC in Marijuana
Common Serious Adverse Drug Reactions
Effects of an inhibitor and an uncoupler on oxygen uptake and ATP synthesis
Placebo Effects and Viagra
Bodily effects of stress