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Mars2501 [29]
3 years ago
15

Courtney was on the track team and wanted to test the effects of her diet on her race times. She decided to test high carbohydra

te meals and high protein meals for four weeks. She tested the effects by recording her 500 meter times one hour after each meal. For breakfast she had a high protein or high carbohydrate meal and for lunch, she would have the type of meal she did not select for breakfast. Some days she had her high protein meal in the morning and and other days she had her high protein meal at lunch. She began recording her results and noticed that no matter what meal she had, her times were always faster at lunch. She did notice a trend of slightly faster times after her high carbohydrate meals when compared to her protein meals for the same time of day; however, she was unsure of the true impact. What is a factor in Courtney's study that could result in misleading conclusions?
Biology
2 answers:
nekit [7.7K]3 years ago
6 0

So I just took the USATestprep quiz that had this question and the correct answer is The time of day seems to influence her speed; however, she wants to test the impact of the type of meals she eats.

Hope that helps!

& btw i guarantee thats the correct answer


baherus [9]3 years ago
3 0

Answer:

Co-relation between the independent variables i.e a) Diet type and  

b) Time of the day would lead to misleading conclusions

Explanation:

Courtney was actually trying to test the effect of her diet on her racing times. But instead of making an observation with respect to diet type, she also started making observations for "time of the day" vs. "racing time"

Earlier there was only one independent variable i.e "diet type" whose impact on dependent variable "racing time" was to be studied. But by the end of the test there were two independent variables-  

a) Diet type and  

b) Time of the day.  

Since, Courtney has no understanding of co-relation between the above two independent variable. It was very difficult for Courtney to come to a exact solution.  

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