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Based on the type of data collected in this study, which measure of central tendency must the researchers use, and why is it the only appropriate choice?
Case context: A research team is studying the primary coping mechanisms used by college students during final exams. They classify the coping mechanisms into categories: 'Exercise', 'Socializing', 'Sleeping', and 'Eating'. After collecting data from 200 students, the researchers want to report the central tendency of their findings.
Question: Based on the type of data collected in this study, which measure of central tendency must the researchers use, and why is it the only appropriate choice?
Sample answer: The researchers must use the mode to report the central tendency. Because the coping mechanisms are categorical variables (Exercise, Socializing, Sleeping, Eating), the mode is the only appropriate measure, as it identifies the category with the highest count. The mean and median cannot be calculated for categorical data.
Key points:
- The appropriate measure of central tendency is the mode.
- The data collected are categorical variables.
- The mode simply represents the category with the highest frequency or count.
Rubric: Full credit is awarded if the student correctly identifies the mode and explains that it must be used because the data consists of categorical variables.
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Research Methods in Psychology - 4th American Edition @ KPU
Related
Example of a Mode
Which of the following is a unique characteristic of the mode compared to other measures of central tendency?
Match each term related to the mode with the statement that best describes its role in summarizing psychological research data.
In a study on student stressors, 'Exams' currently has 20 responses and 'Financial Stress' has 18 responses. If three more students are surveyed and they all choose 'Financial Stress' as their primary stressor, the mode of the distribution shifts from 'Exams' to 'Financial Stress.'
A researcher is tracking the 'preferred research method' among a group of students in a seminar. Sequence the following events to analyze how the mode of this categorical distribution changes as new data is incorporated into the study.
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The mode is the value or category that occurs with the highest frequency in a distribution.
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A researcher is evaluating which measure of central tendency is the most appropriate to summarize participants' preferred learning formats (e.g., visual, auditory, or hands-on). Order the steps the researcher should take to evaluate and select the correct measure.
Define the mode as a measure of central tendency and explain its unique capability compared to the mean and median.
Based on the type of data collected in this study, which measure of central tendency must the researchers use, and why is it the only appropriate choice?
A developmental psychologist records the favorite color (e.g., blue, red, green) of 50 preschoolers. What specific statistical value should the psychologist report to summarize the central tendency of these favorite colors, and what will that value represent?