A random sample means that
a. each person in the population has an equal chance of being included in the study
b. people are assigned to conditions by random chance
c. participants have responded to an advertisement or request for participation
d. the sample is not representative
Question 2
In the last 20 years, social psychologists have improved the representativeness of their research samples in which of the following ways?
a. by including many more members of ethnic minority groups in their samples
b. by decreasing their reliance on older adults as research participants
c. by improving the gender balance of their samples
d. all of the above
Comparing allele and genotype frequencies in a population with the Hardy-Weinberg equation and a Pun
Estimating cicada population size and predation rates by birds.
Area of Manatee Population
Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of
Self-Esteem in a Longitudinal Sample
Sample of a business card design.