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A researcher is plotting the results of a Carlson and Conard replication. If the mean score for a participant group is and the standard error of that mean is , how should they apply this standard error value to draw the vertical error bar for this data point on an APA-style line graph?
Question: A researcher is plotting the results of a Carlson and Conard replication. If the mean score for a participant group is and the standard error of that mean is , how should they apply this standard error value to draw the vertical error bar for this data point on an APA-style line graph?
Sample answer: The researcher should draw a vertical line through the data point at , extending it units above the point (to ) and units below the point (to ).
Key points:
- The error bar must be oriented vertically.
- The error bar represents the standard error of units.
- The bar must extend equal distances ( units) above and below the mean value of .
Rubric: The response must correctly apply the concept of vertical error bars representing standard error by indicating that the bar should extend vertically both above and below the data point by the standard error value of units.
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Research Methods in Psychology - 4th American Edition @ KPU
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A researcher is plotting the results of a Carlson and Conard replication. If the mean score for a participant group is and the standard error of that mean is , how should they apply this standard error value to draw the vertical error bar for this data point on an APA-style line graph?