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A researcher is constructing an APA-style line graph to show a correlation between two quantitative variables where the independent variable has three distinct levels of difficulty (low, medium, high) and the dependent variable is task performance. Applying APA guidelines, what should each plotted point on this graph represent, and what should the error bars extending from these points visualize?
Question: A researcher is constructing an APA-style line graph to show a correlation between two quantitative variables where the independent variable has three distinct levels of difficulty (low, medium, high) and the dependent variable is task performance. Applying APA guidelines, what should each plotted point on this graph represent, and what should the error bars extending from these points visualize?
Sample answer: Each plotted point must represent the mean task performance score (the dependent variable) for participants at a single level of task difficulty (the independent variable). The error bars extending from these points must visualize standard error.
Key points:
- Plotted points represent the mean score on the dependent variable.
- Points represent participants at a single level of the independent variable.
- Error bars visualize standard error.
Rubric: To receive full credit, the answer must apply the principles of APA-style line graphs by specifying that: 1. Each plotted point represents the mean score of the dependent variable (task performance) at a single level of the independent variable (difficulty level). 2. The error bars visualize the standard error.
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Research Methods in Psychology - 4th American Edition @ KPU
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A researcher is constructing an APA-style line graph to show a correlation between two quantitative variables where the independent variable has three distinct levels of difficulty (low, medium, high) and the dependent variable is task performance. Applying APA guidelines, what should each plotted point on this graph represent, and what should the error bars extending from these points visualize?