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Sexual Partners Survey Outlier Example
An outlier might represent a truly extreme but accurate response rather than an error. For instance, in a university survey where most participants reported having had fewer than sexual partners, a few participants reported extreme scores of or . These extreme scores could be honest and accurate estimates rather than intentional exaggerations.
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Research Methods in Psychology - 4th American Edition @ KPU
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Excluding Outliers
Handling Valid Extreme Outliers
Example of an Outlier
Sensitivity of the Mean to Outliers
Defining Outliers using z Scores
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Impact of Outliers on the Range
Identifying Outliers Using z Scores
Handling Outliers
What term is used to describe an extreme score that falls significantly above or below the rest of the scores within a distribution?
In psychological research, an outlier in a dataset always indicates that an error occurred during data collection, such as an equipment malfunction or participant misunderstanding.
In psychological research, outliers can arise from various sources. Match each research scenario with the most likely reason for the extreme score described.
A researcher identifies a score in a dataset that falls significantly below the rest of the distribution. Arrange the following steps in the logical analytical sequence used to investigate and address this extreme value.
You are constructing a research protocol for a study on the cognitive effects of extreme stress. To ensure that your final dataset can systematically distinguish between genuine cases of 'stress resilience' (valid outliers) and 'task confusion' (measurement errors), which design element should you integrate into your data-collection phase?
Sexual Partners Survey Outlier Example
Outlier in Beck Depression Inventory Scores
A researcher is evaluating a dataset where a single participant's score is , while all other scores are between and . After confirming the participant understood the task perfectly and no errors occurred, the researcher decides to retain the score. This decision reflects a judgment that the extreme value is a(n) _____ which, despite its potential to skew the mean, represents a genuine and valid case within the study.
A researcher measures anxiety in 50 participants and finds that 49 scores fall between 20 and 45, but one participant scores 95. This extreme value, which may reflect a genuinely anxious individual or a data collection error, is called a(n) _____.
A researcher administering a depression inventory notices one participant scored far higher than the rest of the sample. If the researcher confirms this participant is indeed clinically depressed and no data entry or equipment errors occurred, this extreme score is no longer considered an outlier.
Match each description of a research scenario that produces an extreme score with its corresponding source of outlier.
When conducting data cleaning on a newly collected psychological dataset, order the stages a researcher should follow to systematically identify and categorize an extreme score.
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In a university survey, most participants report having had fewer than 15 sexual partners, but a few participants report extreme scores of 60 or 70. What does this specific example illustrate about outliers in a dataset?
While analyzing a university survey on sexual behavior, a researcher notices that although almost all participants report fewer than 15 sexual partners, a few participants report having 60 or 70 partners. To ensure data quality, the researcher must automatically delete these extreme scores from the dataset because they are undoubtedly intentional exaggerations.
A researcher is analyzing a university survey where most participants report having had fewer than 15 sexual partners, but a few participants report 70. Arrange the steps the researcher should take to determine if these extreme scores are 'honest and accurate estimates' that should be retained in the analysis.
A researcher is developing a 'Data Quality Plan' for a university-wide survey on student behavior. To ensure the plan correctly accounts for the possibility that extreme scores—such as a report of partners when the majority report fewer than —are 'honest and accurate estimates' rather than errors, which of the following automated validation protocols should they construct?
In a university survey about the number of sexual partners, most participants report fewer than 15, but a few report extreme scores of 60 or 70. When considering how to handle these outliers, what is an important possibility to keep in mind?
A research team is designing a survey to study sexual behavior and wants to avoid the common mistake of automatically excluding extreme scores (e.g., reporting partners) that might be 'honest estimates'. Which of the following experimental designs would the team need to construct to effectively retain these valid, high-frequency responses while still filtering out genuine data-entry errors?
A psychology researcher is analyzing data from a university survey where most students reported having fewer than 15 sexual partners. Applying the principle that unusual scores are not always errors, match each specific participant response to the researcher's most appropriate methodological interpretation.
A researcher conducting a survey on sexual behavior finds that while most students report fewer than 15 partners, two participants report 60 and 70. To analytically determine if these extreme scores should be treated as valid 'honest estimates' rather than measurement errors, arrange the following steps of the researcher's logical evaluation process.
In a university survey where the majority of students report having fewer than 15 sexual partners, a researcher identifies a few participants reporting 60 or 70 partners. True or False: These extreme responses must be excluded from the dataset because they are guaranteed to be results of participant dishonesty or data-entry mistakes.
A researcher is critiqued for excluding survey responses of and sexual partners in a study where most participants reported fewer than . The critique suggests that the researcher failed to consider that these outliers, though extreme, may have been _____ estimates of the participants' behavior.
A university survey on sexual behavior found that most participants reported fewer than 15 partners, while a small number reported 60 or 70. Match each description on the left with the correct interpretation on the right.
In a university survey of sexual behavior, most participants reported fewer than 15 sexual partners, but a few reported extreme scores of 60 or 70. Rather than automatically deleting these outliers, a researcher should evaluate their _____ to determine whether they represent honest and accurate estimates rather than errors.