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
Gangrene of the toes and foot as a result of an infection often means eventual amputation.
Worldwide Variations in Population and Income Levels Developed countries represent only 18% of the
The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha
World Population Growth
Transmission of recessive disorders (25% chance for an affected child).
After 159 days,she paid a maturity value of $11,626, which included interest of $814.