A researcher would like to examine how the chemical tryptophan, contained in foods such as turkey, can affect mental alertness. A sample of n = 9 college students is obtained and each student’s performance on a familiar video game is measured before and after eating a traditional Thanksgiving dinner including roast turkey. The average score dropped by M = 14 points after the meal with SS = 1152 for the difference scores. Use a two-tailed test with α = .05. A) Compute Cohen’s D to measure the size of the effect. B) Write a sentence demonstrating how the outcome of the test and the measure of effect size would appear in a research report.
A researcher would like to examine how the chemical tryptophan, contained in foods such as turkey, can affect mental alertness. A sample of n = 9 college students is obtained and each student’s performance on a familiar video game is measured before and after eating a traditional Thanksgiving dinner including roast turkey. The average score dropped by M = 14 points after the meal with SS = 1152 for the difference scores. Use a two-tailed test with α = .05. A) Compute Cohen’s D to measure the size of the effect. B) Write a sentence demonstrating how the outcome of the test and the measure of effect size would appear in a research report.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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A researcher would like to examine how the chemical tryptophan, contained in foods such as turkey, can affect mental alertness. A sample of n = 9 college students is obtained and each student’s performance on a familiar video game is measured before and after eating a traditional Thanksgiving dinner including roast turkey. The average score dropped by M = 14 points after the meal with SS = 1152 for the difference scores. Use a two-tailed test with α = .05.
A) Compute Cohen’s D to measure the size of the effect.
B) Write a sentence demonstrating how the outcome of the test and the measure of effect size would appear in a research report.
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