Concept explainers
Each of the following research studies uses a survey as a method for collecting data. However, not all of the studies are examples of the survey research design. Based on the information provided for each study, (a) indicate whether it is or is not an example of the survey research design and (b) briefly explain the reason for your answer.
a. Based on a survey of 12,344 U.S. college students and 6,729 Canadian college students, Kuoetal.(2002) report that alcohol use is more common among Canadian than U.S. students, but heavy drinking (five or more drinks in a row for males. four or more for females) is significantly higher among U.S. students than Canadian students.
b. To examine adolescent substance abuse, Li, Pentz, and Chou (2002) surveyed 1,807 middle school students from 57 schools. The results showed that a greater risk of adolescent substance abuse was associated with increasing numbers of parents and friends who were substance abusers. However, friends’ use did not affect adolescent substance abuse when parents were nonusers.
c. Wolak, Mitchell, and Finkelhor (2002) used a survey of 1,501 adolescents to examine online relationships. The results showed that 14% reported close online friendships during the past year, 7% reported face-to-face meetings with online friends, and 2% reported romantic online relationships.
Trending nowThis is a popular solution!
Chapter 13 Solutions
Research Methods for the Behavioral Sciences (MindTap Course List)
- AP1.2 A child is 40 inches tall, which places her at the 90th percentile of all children of similar age. The heights for children of this age form an approximately Normal distribution with a mean of 38 inches. Based on this information, what is the standard deviation of the heights of all children of this age? 0.20 inches (c) 0.65 inches (e) 1.56 inches 0.31 inches (d) 1.21 inchesarrow_forwardAP1.1 You look at real estate ads for houses in Sarasota, Florida. Many houses range from $200,000 to $400,000 in price. The few houses on the water, however, have prices up to $15 million. Which of the following statements best describes the distribution of home prices in Sarasota? The distribution is most likely skewed to the left, and the mean is greater than the median. The distribution is most likely skewed to the left, and the mean is less than the median. The distribution is roughly symmetric with a few high outliers, and the mean is approximately equal to the median. The distribution is most likely skewed to the right, and the mean is greater than the median. The distribution is most likely skewed to the right, and the mean is less than the median.arrow_forwardDuring busy political seasons, many opinion polls are conducted. In apresidential race, how do you think the participants in polls are generally selected?Discuss any issues regarding simple random, stratified, systematic, cluster, andconvenience sampling in these polls. What about other types of polls, besides political?arrow_forward
- Please could you explain why 0.5 was added to each upper limpit of the intervals.Thanksarrow_forward28. (a) Under what conditions do we say that two random variables X and Y are independent? (b) Demonstrate that if X and Y are independent, then it follows that E(XY) = E(X)E(Y); (e) Show by a counter example that the converse of (ii) is not necessarily true.arrow_forward1. Let X and Y be random variables and suppose that A = F. Prove that Z XI(A)+YI(A) is a random variable.arrow_forward
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt