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 6, Problem 10E
What is the primary threat to internal validity for a study that compares different groups of participants?
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Chapter 6 Solutions
Research Methods for the Behavioral Sciences (MindTap Course List)
Ch. 6.1 - Describe, compare, and contrast the five research...Ch. 6.1 - Define research strategy, research design, and...Ch. 6.2 - Define the concept of external validity and a...Ch. 6.2 - Define the concept of internal validity and a...Ch. 6.3 - Identify and explain the common threats to...Ch. 6.4 - Describe how extraneous variables can become...Ch. 6.4 - Describe how environmental variables can be...Ch. 6.5 - Define experimenter bias, demand characteristics,...Ch. 6 - In addition to the key words, you should also be...Ch. 6 - For each of the following scenarios, identify...
Ch. 6 - How is the descriptive strategy different from the...Ch. 6 - Explain the difference among the terms research...Ch. 6 - A researcher conducts a study with 6-year-old...Ch. 6 - A researcher finds that college students are more...Ch. 6 - Explain how using college students as participants...Ch. 6 - What is the novelty effect, and how does it affect...Ch. 6 - Suppose that you wake up in the morning with all...Ch. 6 - What is the primary threat to internal validity...Ch. 6 - Describe how experimenter bias can be a threat to...Ch. 6 - Describe how participant reactivity can be a...Ch. 6 - Selection bias and individual differences are both...
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- The researchers hypothesised that people who receive an audiovisual presentation will have a different mean level of recall of ad information as those who receive only the visual aspects of the ad. What significance test should the researchers use for testing their hypothesis?arrow_forwardA researcher studying psychological well-being between those with depression, anxiety, or mood disorders and recruits 20 individuals with depression, 20 with anxiety, and 20 with mood disorders, and measures their psychological adjustment. Which type of statistical test would be appropriate for this design?arrow_forwardWhat is the Null and Alternative Hypothesis? Factors affecting the learning styles of Students in Online Class.arrow_forward
- An investigator wants to assess whether smoking is a risk factor for bladder cancer. Electronic medical records at a city hospital will be used to identify one hundred patients (cases) with pancreatic cancer. Two hundred patients (controls) who are similar but free of bladder cancer will also be selected. Each participant’s medical record will be analyzed for smoking history. Which of the following is true about this study? Group of answer choices There is little or no bias in assessment of exposure to the factor. It is cost- and time-efficient for studying rare diseases. Dependence on recall by subjects in the study is minimized. It is possible to determine the true incidence rate of the disease.arrow_forwardSmartphone Ownership. The Pew Internet&American Life Project conducted a survey of smartphone ownership. One aspect of the study involved the gender of smartphone owners. Of 1029 sampled men, 607 owned a smartphone; and of 1223 sampled women, 648 owned a smartphone. At the 1% significance level, do the data provide sufficient evidence to conclude that a difference exists in the percentages of smartphone owners between men and women?arrow_forwardExplain how using college students as participants in a study may limit the external validity of a study’s research findings.arrow_forward
- Researchers asked soda drinkers to view either the logo for their favorite soda or a graphic warning demonstrating the harmful effects of sugary beverages (e.g., tooth decay, obesity) and then measured their negative mood with a short survey. They found that those participants who saw the warnings reported significantly greater negative moods than those who saw the logos. Which statistical test should be used?arrow_forwardA medical school claims that more than 28% of its students plan to go into general practice. It is found that among a random sample of 130 of the school's students, 39% of them plan to go into general practice. You wish to conduct a significance test to evaluate the school's claim.arrow_forwardAn education researcher is interested in the effect of violent television programs on a child’s aggression. Forty children were recruited and were divided into two groups. Half of the children watched a violent television program while the other half watched a non-violent program. The children were then placed in a small group and the researcher rated the level of aggressiveness of each child. Which statistical test would be best to determine if there is a significant difference between groups?arrow_forward
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what is Research Design, Research Design Types, and Research Design Methods; Author: Educational Hub;https://www.youtube.com/watch?v=LpmGSioXxdo;License: Standard YouTube License, CC-BY