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How can a researcher apply the methodological approach used by Lahaut and colleagues to evaluate whether non-response bias is present in a survey study?
Question: How can a researcher apply the methodological approach used by Lahaut and colleagues to evaluate whether non-response bias is present in a survey study?
Sample answer: A researcher can apply this approach by contacting a subset of the non-responders through a different, direct method—such as unannounced home visits—and comparing their responses to the original responders. If the two groups differ significantly (e.g., if non-responders have a higher rate of abstainers), the researcher has demonstrated non-response bias.
Key points:
- Apply a different, direct contact method (such as home visits) to follow up with non-responders.
- Compare the data gathered from the follow-up group with the data from the initial responders.
- Analyze whether systematic differences exist between the two groups to determine if bias exists.
Rubric: The answer should describe applying a follow-up strategy using a different, direct contact method (e.g., unannounced visits) on non-responders and comparing their characteristics to the original responders to check for systematic differences.
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Research Methods in Psychology - 4th American Edition @ KPU
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In a study on alcohol consumption that used a mail survey, researchers followed up with non-responders through unannounced home visits and discovered that these non-responders included a disproportionately high number of people who abstained from alcohol.
In the study by Lahaut and colleagues regarding alcohol consumption, researchers conducted unannounced home visits to individuals who did not respond to their initial mail survey. Which of the following best explains why this follow-up was necessary for the validity of the study?
To investigate the potential for misleading results in the alcohol consumption survey conducted by Lahaut and colleagues, in what order should the following methodological steps be sequenced to accurately detect and confirm data distortion?
Analyze the relationship between participant behavior and data validity in the Lahaut and colleagues alcohol consumption study by matching each component to its specific role in creating or identifying research bias.
In the study of alcohol consumption by Lahaut and colleagues, approximately what percentage of the participants initially returned the mail survey before researchers began conducting home visits?
True or False: In the study by Lahaut and colleagues, the alcohol consumption habits of the individuals who returned the mail survey were found to be representative of the habits of those who did not respond.
Apply your understanding of non-response bias by matching each element from the Lahaut et al. alcohol consumption study to the specific role it played in the research.
When Lahaut and colleagues compared their original mail survey responders with the non-responders contacted through home visits, they found that the non-responders included a disproportionately high number of _____. This systematic difference is the core reason the original survey data overestimated alcohol consumption in the population, because the very group most likely to pull the average down was underrepresented among those who initially responded.
A researcher wants to evaluate whether non-response bias has materially compromised the validity of a completed survey study (such as the Lahaut et al. alcohol consumption study). Arrange the following evaluative steps in the order that best reflects sound critical appraisal of the study.
In a study of alcohol consumption patterns, researchers found that non-responders were much more likely to be abstainers than those who responded. If the researchers had ignored the non-responders and published only the data from the responders, a critical evaluation of their results would show that their final estimate of community alcohol use was _____.
Describe the methodology used by Lahaut and colleagues to address the potential for non-response bias in their mail survey on alcohol consumption, and recall the specific findings that resulted from this investigation.
Based on your understanding of non-response bias and the findings of Lahaut and colleagues, diagnose the methodological flaw in the project director's suggestion and justify why immediately publishing these results could lead to invalid conclusions.
How can a researcher apply the methodological approach used by Lahaut and colleagues to evaluate whether non-response bias is present in a survey study?