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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Textbook Question
Chapter 9, Problem 5E
Under what circumstances is it advisable to switch to a between-subjects design instead of using a within-subjects design?
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Chapter 9 Solutions
Research Methods for the Behavioral Sciences (MindTap Course List)
Ch. 9.1 - Describe the general characteristics of a...Ch. 9.1 - Describe how time-related factors such as history,...Ch. 9.2 - For a within-subjects experiment, explain how the...Ch. 9.2 - Define counterbalancing and explain how it is used...Ch. 9.2 - Describe the limitations of counterbalancing and...Ch. 9.3 - Explain the general advantages and disadvantages...Ch. 9.3 - Define a matched-subject design and explain how it...Ch. 9.4 - Describe the different ways that within-subjects...Ch. 9 - In addition to the key words, you should also be...Ch. 9 - Describe the characteristics of a within-subjects...
Ch. 9 - Time-related factors and order effects can...Ch. 9 - For a within-subjects experiment that includes a...Ch. 9 - Under what circumstances is it advisable to switch...Ch. 9 - Describe the circumstances in which...Ch. 9 - Explain why partial counterbalancing is sometimes...Ch. 9 - Describe the problems that can be caused by...Ch. 9 - A researcher has a sample of 30 rats that are all...Ch. 9 - Explain how a matched-subjects design attempts to...Ch. 9 - Describe the disadvantages of a multiple-treatment...Ch. 9 - At the beginning of this chapter, we described a...
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- What is an experiment?arrow_forwardThis research was conducted with Korean adolescents in the Los Angeles area. Would you be willing to generalize the results of this study to Korean adolescents who live in other regions of the country? Why or why not.arrow_forwardUnder what circumstances is it advisable to switch to a between-subjects design instead of using a within-subjects design? On the other hand, when is it advantageous to use a within subjects design instead of a between subjects design? Use examples in which you really would have the option of using either design, not situations in which only one of these designs is possible.arrow_forward
- In a research study, wherein the researcher wanted to know if people’s intelligence is perceived differently based on race, participants observed either a Caucasian, African American, or Asian American stimulus person giving a speech. All stimulus persons gave the same verbal speech. After observing this person, the participants had to rate the stimulus person’s level of intelligence on a scale of 1-10. The participants were separated by gender and their ratings were analyzed separately. How many possible interaction effects might the researcher find? Group of answer choices 3 0 1 2arrow_forwardA manufacturer of household appliances wanted to determine if there was a relationship between family size and the size of washing machine purchased. The manufacturer was preparing guidelines for sales personnel and wanted to know if the sales staff should make specific recommendations to customers. A random sample of 300 families was asked about family size and size of washing machine. For the 40 families with one or two people, 25 had an 8-pound washer, 10 had a 10-pound washer, and 5 had a 12-pound washer. The 140 families with three or four people included 37 with the 8-pound washer, 62 with the 10-pound washer, and 41 with the 12-pound washer. For the remaining 120 families with five or more people, 8 had an 8-pound washer, 53 had a 10-pound washer, and 59 had a 12-pound washer. Based on these results, what can be concluded about family size and size of washer? Construct a two-way table, state the hypothesis, compute the statistics, and state your conclusion.arrow_forwardIf gender is the independent variable of a quasi-experiment, this experiment must have a between-subject design. Group of answer choices True Falsearrow_forward
- New Zealand requires cyclists to wear cycle helmets on public roads and this is enforced with fines. Most other countries have no mandatory helmet law, and a few have a law but do not enforce it. Finland is an example of a country that has a mandatory cycle helmet law but does not enforce it. A road safety researcher is interested in whether the proportion of cyclists in New Zealand do actually wear helmets is different to the proportion of cyclists in Finland who wear helmets. She has data from a survey which gives the following information: New Zealand: Of 210 New Zealand cyclists surveyed, 100 wear a helmet while cycling. Finland: Of 630 Finnish cyclists surveyed, 290 wear a helmet while cycling. Say that the true population proportion of New Zealand cyclists who wear a helmet is p1 and the true population proportion of Finnish cyclists who wear a helmet is p2. If our null hypothesis is H0: p1 - p2 = 0 and our alternative hypothesis is Ha: p1 - p2 ≠ 0, what is the z test…arrow_forwardFirst, take a few minutes to think of at least four reasons why people willingly drank the Kool-Aid. You can use any resource you want (talk to other class members, use the internet, simply brainstorm, etc.). Second, think about one of those reasons and design a basic study that could test that notion. Think about an experimental group and a control group. What would the former get that the latter would not, and what would you look at in terms of responses from both groups?arrow_forwardDr. Guidry conducts a study examining the relationship between the number of friends one has and the experience of daily stress and life satisfaction. She randomly samples 1,500 elderly men and women in Nashville, Tennessee (the state capital), located in the southern United States. Dr. Guidry submits her study for publication in a scientific journal. If one of the peer reviewers is concerned about the external validity of her study, which of the following is the most important aspect of Dr. Guidry's study to consider? the number of significant findings the random sampling technique used to recruit the participants the number of people in the sample the use of three measured variablesarrow_forward
- Bryan is conducting research on personality and health behaviors of college students. If he asks participants to bring their roommates, and those roommates also serve as participants, the sample would be considered: A. single. B. independent. C. paired. D. dependent.arrow_forwardA researcher wishes to determine if there is an association between age and life-contentment. To do this, the researcher selects a group of 300 individuals and documents their age as well as if they appear content in their daily lives. Part A: Is this an observational study or an experiment? Why? Part B: Determine the population and sample of this study. Part C: The researcher wants the sample to contain 40% men and 60% women. How can this be done using Stratified sampling? Part D: The researcher also wants to consider if household income influences the results. This introduction of an additional variable is considered what? Part E: The researcher excludes all people of Asian descent from the sampling process. This is an example what? (Be specific)arrow_forwardWould an observational study or an experiment be more appropriate for a medical research team that is trying to figure out if a new medicine is effective in treating migraines? Justify your response.arrow_forward
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