Professor Howlick's questionnaire asked each student to name every other student with whom they had drank
with during the past two months.
Kerry Sobiski, his assistant, sent emails for the online survey to each person
named by students in the first sample. The same question was asked in this online survey. Ms. Sobiski next
sent emails for the online survey to everyone named as a drinking partner in the second sample and so on
until she had emailed ten different waves of online surveys. She then drew up a list of all students who drank
with anyone else who answered the online survey, and used it as a sample for a study on drinking networks
on campus. What kind of sampling was Ms. Sobiski using?
A) snowball sampling B) quota sampling
C) accidental sampling D) cluster sampling
A
You might also like to view...
Of the following theories anthropologists have proposed to explain how gender roles are divided cross-culturally, which theory says that the demands of pregnancy and nursing limit women to performing tasks close to home, like cooking and gathering wild plants?
A) economy-of-effort B) compatibility-with-child-care C) expendability D) strength
Drug researchers have proposed three models or explanations for the drug-crime nexus. Which one is the most adequate in explaining this link?
A. the enslavement model B. the intensification model C. the predisposition model D. All are equally adequate in explaining this link. E. All are equally inadequate in explaining this link.
As we leave adolescence and enter young adulthood, our central task is to
a. assume increased responsibility. b. develop effective coping mechanisms. c. challenge our early childhood assumptions. d. rebel against our parents' values.
Answer the following statement(s) true (T) or false (F)
1. A relationship is said to be strong when Pearson’s r is .10. 2. A Pearson’s r of –.9 represents a stronger association than an r of .60. 3. In the linear regression equation, “a” represents the y-intercept. 4. In the linear regression equation, “b” represents the y-intercept. 5. r2 represents the percent of total variance in the independent variable that is explained by the dependent variable.