________________ of participants is done to obtain a representative sample, and __________ of the participants is done to improve the experimental design of the study
a. Random selection; random assignment
b. Random selection; random sampling
c. Random assignment; random selection
d. Random assignment; matching
A
You might also like to view...
Examples of flawed democracies include:
a. Haiti, Kenya, and Brazil. b. Brazil, Mexico, and Kenya. c. Kenya, Haiti, and Iran. d. Brazil, India, and Mexico.
Julia is conducting a study looking at individuals habits when preparing food. Specifically, she is measuring the number of times a person uses incorrect food preparation behaviors
To conduct this study, Julia is going to people's homes and watching them prepare meals. Julia is primarily collecting measures for her dependent variable. a. attitudinal b. cognitive c. physiological d. behavioral
An economic system in which both private industry and government play important roles is
A) laissez-faire capitalism. B) socialism. C) a mixed, or modified, free-enterprise system. D) mercantilism. E) centralism.
Since World War II, the number of international governmental organizations has
a. increased substantially. b. increased slightly. c. decreased slightly. d. decreased substantially.