Research Methods for the Behavioral Sciences (MindTap Course List)
5th Edition
ISBN: 9781305104136
Author: Frederick J Gravetter, Lori-Ann B. Forzano
Publisher: Wadsworth Publishing
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Textbook Question
Chapter 1, Problem 5E
Pessimists commonly claim that, if you drop a piece of buttered bread, it will probably land butter-side down. Describe how you would use the empirical method to evaluate this claim.
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Read through this scenario and look at the data that was collected. State the null and all possible research hypotheses. Review the results below (I used SPSS) and answer the questions that follow.
Scenario:
A researcher wants to see if gender and / or income affects the total amount of help given to a stranger who is sitting on the side of a busy road with a sign asking for help.
The independent variables are gender, income, and the interaction of gender and income. The dependent variable is total help.
He wants to know if one or both factors – or the interaction of the two - affects the total amount of help offered. Because he is analyzing two independent variables (gender and income), he used a factorial ANOVA. His results show the main effect of each of the independent variables on the dependent variable (total help) and the interaction effect. The researcher is using a 95% confidence interval which means that he wants to be at least 95% sure that his independent variables…
Read through this scenario and look at the data that was collected. State the null and all possible research hypotheses. Review the results below (I used SPSS) and answer the questions that follow.
Scenario:
A researcher wants to see if gender and/or income affect the total amount of help given to a stranger who is sitting on the side of a busy road with a sign asking for help.
The independent variables are gender, income, and the interaction of gender and income. The dependent variable is total help.
He wants to know if one or both factors – or the interaction of the two - affect the total amount of help offered. Because he is analyzing two independent variables (gender and income), he used a factorial ANOVA. His results show the main effect of each of the independent variables on the dependent variable (total help) and the interaction effect. The researcher is using a 95% confidence interval which means that he wants to be at least 95% sure that his independent variables…
As you review a psychological report, you see a score reported as a stanine. The evaluator did not provide a written explanation of a stanine score, only that the score in the area of inattentiveness was a 5 and a statistically insignificant finding. Do you have enough information to interpret this score statistically? If so, how would you explain this score?
Chapter 1 Solutions
Research Methods for the Behavioral Sciences (MindTap Course List)
Ch. 1.2 - Describe tenacity and intuition as methods of...Ch. 1.2 - Describe and identify an example of the method of...Ch. 1.2 - Describe and identify an example of the rational...Ch. 1.2 - Describe and identify an example of the empirical...Ch. 1.3 - Identify and describe the steps of the scientific...Ch. 1.3 - Prob. 6LOCh. 1.3 - Prob. 7LOCh. 1.3 - Prob. 8LOCh. 1.3 - Explain the distinction between science and...Ch. 1.4 - Describe the difference between qualitative and...
Ch. 1.4 - Identify and describe the steps in the research...Ch. 1 - In addition to the key words that were defined in...Ch. 1 - Describe how the cliche You can lead a horse to...Ch. 1 - Describe why you might be cautious about using the...Ch. 1 - Prob. 4ECh. 1 - Pessimists commonly claim that, if you drop a...Ch. 1 - What are the five steps of the scientific method?Ch. 1 - Describe the difference between inductive and...Ch. 1 - State a hypothesis that identifies a specific...Ch. 1 - Is the following hypothesis testable, refutable,...Ch. 1 - Describe what it means to say that science is...Ch. 1 - An expert appears on a shopping network to explain...Ch. 1 - A social science researcher would like to...Ch. 1 - Determine whether each of the following hypotheses...Ch. 1 - In this chapter, we identified a variety of...Ch. 1 - Prob. 2EA
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- Your math teacher Ms. Washington notices that students with calculators do better on her math tests than those without calculators. To test her hypothesis, she randomly chooses 20 students and tracks their progress. She then gives 10 of those students a calculator and after a period of times compares progress again. The calculator group showed an increase. Which fact would lead you to believe that the relationship between calculator and progress may be one of causation? Tim’s scores decreased with the calculator. Tom’s scores increased with the calculator. A control group was used and the subjects were chosen randomly. Tammy’s scores did not change with the calculator.arrow_forwardVitamin E and the Risk of Prostate Cancer: Klien et al (2011) conducted the following study to determine the effect of vitamin E and selenium treatment on the risk of developing prostate cancer in healthy men. A total of 34,887 men from different study sites in the United States, Canada, and Puerto Rico were randomly selected. To be eligible to participate, the men had to take a rectal examination that showed he was not suspicious of having prostate cancer and be aged 50 years or older for black men and 55 years or older for all others. Each man was randomly assigned to receive one of four treatments: selenium, vitamin E, selenium and vitamin E together, or a placebo. The men were followed up after 8 years to see if they had developed prostate cancer or not. The main question of interest is to determine if the risk of developing prostate cancer differs by the treatment taken. The data are summarized in the table below: No Prostate Cancer Prostate Cancer Total Selenium 8,752 8,737 8,702…arrow_forward
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