Research Methods for the Behavioral Sciences (MindTap Course List)
6th Edition
ISBN: 9781337613316
Author: Frederick J Gravetter, Lori-Ann B. Forzano
Publisher: Cengage Learning
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Chapter 4.2, Problem 1LO
Describe the major historical
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“The US Centers for Disease Control and Prevention said about 72 million Americans—nearly one out of every four of the country’s 304 million residents—are considered obese. Millions more are designated as overweight.” The American trend toward obesity has prompted many physicians to offer weight-loss programs to their patients. [Source: Price, W. T. “Physicians Get into the Weight-Loss Business.” Florida Today, July 7, 2008.]
A physician conducted an experimental study to compare the effectiveness of four different weight-loss programs. In the study, 64 obese adults were randomly assigned to the four programs so that each program had 16 adults. The programs lasted for six months. The weights of the subjects were measured before and after the programs, and each subject’s weight loss was computed in pounds.
The following table summarizes the results of the study, giving the number of observations and the sample mean and variance of the subjects’ weight loss in each program.…
The report Controlling Road Rage: A Literature Review and Pilot Study was prepared for the AAA Foundation for Traffic Safety by D. Rathbone and J. Huckabee. The authors discussed the results of a literature review and pilot study on how to prevent aggressive driving and road rage. Road rage is defined as “… an incident in which an angry or impatient motorist or passenger intentionally injures or kills another motorist, passenger, or pedestrian, or attempts or threatens to injure or kill another motorist, passenger, or pedestrian.”
One aspect of the study was to investigate road rage as a function of the day of the week. The following table provides a frequency distribution for the days on which 69 road-rage incidents occurred.
Day
Frequency
Sunday
5
Monday
5
Tuesday
11
Wednesday
12
Thursday
11
Friday
18
Saturday
7
At the 5% significance level, do the data provide sufficient evidence to conclude that road-rage incidents are more likely to occur on…
Chapter 4 Solutions
Research Methods for the Behavioral Sciences (MindTap Course List)
Ch. 4.2 - Describe the major historical events that helped...Ch. 4.2 - Describe and apply the three ethical principles of...Ch. 4.2 - Describe the major elements of the APA ethical...Ch. 4.2 - Prob. 4LOCh. 4.3 - Describe the major elements of the APA ethical...Ch. 4.3 - Describe the purpose and responsibilities of the...Ch. 4.4 - Define fraud and explain the safeguards that exist...Ch. 4.4 - Define plagiarism and explain the techniques that...Ch. 4 - Prob. 1ECh. 4 - For each of the following, identify which of the...
Ch. 4 - By manipulating the participants experiences, it...Ch. 4 - Explain the role of voluntary participation in...Ch. 4 - Explain the difference between passive and active...Ch. 4 - Explain how the enforcement of confidentiality...Ch. 4 - Suppose you are planning a research study in which...Ch. 4 - Describe in your own words the criteria that the...Ch. 4 - Find your colleges IRB guidelines and procedures...Ch. 4 - Summarize the major APA ethical standards...Ch. 4 - Describe how replication protects against fraud...Ch. 4 - Explain why plagiarism is unethical.
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- The report Controlling Road Rage: A Literature Review and Pilot Study was prepared for the AAA Foundation for Traffic Safety by D. Rathbone and J. Huckabee. The authors discussed the results of a literature review and pilot study on how to prevent aggressive driving and road rage. Road rage is defined as “... an incident in which an angry or impatient motorist or passenger intentionally injures or kills another motorist, passenger, or pedestrian, or attempts or threatens to injure or kill another motorist, passenger, or pedestrian.” One aspect of the study was to investigate road rage as a function of the day of the week. The following table provides a frequency distribution for the days on which 69 road-rage incidents occurred. Day Frequency Sunday 5 Monday 5 Tuesday 11 Wednesday 12 Thursday 11 Friday 18 Saturday 7 At the 5% significance level, do the data provide sufficient evidence to conclude that road-rage incidents are more likely to occur on some days…arrow_forwardCollege administrations are continually perplexed about how to deal with hazing issues on their campuses. But how widespread is hazing, and, in fact, what constitutes hazing anyway? One study tried to get an objective handle on this persistent college phenomenon by carrying out a large survey of college and university students on 53 campuses. The study leaders defined hazing as "any activity expected of someone joining or participating in a group that humiliates, degrades, abuses, or endangers them regardless of a person's willingness to participate." The two types of activities receiving the highest rate of participation overall were "participate in a drinking game" and "sing or chant by yourself or with a few selected team members in a public situation that is not related to the event, game, or practice." The table below shows the sample sizes for those responding and the proportions for each activity across a variety of typical campus groups. In comparing these groups, regard the…arrow_forward"The US Centers for Disease Control and Prevention said about 72 million Americans-nearly one out of every four of the country's 304 million residents-are considered obese. Millions more are designated as overweight." The American trend toward obesity has prompted many physicians to offer weight-loss programs to their patients. [Source: Price, w. T. "Physicians Get into the Weight-Loss Business." Florida Today, July 7, 2008.] A physician conducted an experimental study to compare the effectiveness of four different weight-loss programs. In the study, 60 obese adults were randomly assigned to the four programs so that each program had 15 adults. The programs lasted for six months. The weights of the subjects were measured before and after the programs, and each subject's weight loss was computed in pounds. The following table summarizes the results of the study, giving the number of observations and the sample mean and variance of the subjects' weight loss in each program. Treatment…arrow_forward
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