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Explain how the concept of a dependent variable is demonstrated in this study. In your response, identify the specific dependent variable and explain why it is characterized as the presumed effect.
Case context: A researcher is conducting an experiment to study the impact of note-taking methods (handwritten vs. digital typing) on student learning performance. The researcher assigns students to one of these two note-taking groups, has them attend a lecture, and then measures their score on a follow-up comprehension test to see if the note-taking method caused a difference in their scores.
Question: Explain how the concept of a dependent variable is demonstrated in this study. In your response, identify the specific dependent variable and explain why it is characterized as the presumed effect.
Sample answer: In this study, the note-taking method (handwritten vs. digital) is manipulated, and the students' comprehension test score is measured. The test score is the dependent variable because it represents the presumed effect within the causal relationship. The researcher measures it to evaluate if changes in learning performance occur as a direct result of the notes format.
Key points:
- Identifies the comprehension test score (or learning performance) as the dependent variable.
- Explains that the test score represents the presumed effect of note-taking method.
- Recognizes that measuring the dependent variable evaluates the causal impact of the independent variable.
Rubric: The response must identify the comprehension test score (or learning performance) as the dependent variable and explain that it represents the presumed effect because it is measured to see if it changes directly due to the note-taking manipulation.
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Research Methods in Psychology - 4th American Edition @ KPU
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Example of an Experiment: Note-Taking Method and Learning Performance
Extraneous Variable
Time Series
Confounding Variable
Internal Validity
Null Result
Non-Experimental Research
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