Social Studies, 19.07.2019 20:30 yourbakedpotato101

Aresearcher has conducted an experiment in which she assigned all of her students four hours of homework the night before a test, in order to see what effect the extra stress has on test performance. the study is flawed because the researcher did not include a(n)

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Answer from: eggoysters

The study is flawed because the researcher did not include a control group.

Explanation:

The control group is a necesary element in experimental science, it is the standard to which the researcher can compare the analysis and draw conclusions. A control group has the same characteristics as the experimental group, but it is not subject to treatment or manipulation of variables like the experimental group is. This way, the researcher can assess the differences in the dependent variable between both groups.

In this case, the researcher asigned all of her students the same amount of homework, when she measures the extra stress that it causes she will not be able to relate the extra homework with the stress. If she had a control group to which she asigned less homework, and measured the stress in both groups, she can observe how much more stressed the students in the experimental group are and relate it to the extra homework they received.

Answer from: Quest

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

Answer from: Quest

This question is an opinionated one, and we don’t know anything about the module or anything, thus we can not answer it. but if you are having trouble on what it is asking basically it is just asking to (using your knowledge on the topic) say which topics you were most interested and which were the most challenging.hope this : p

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Aresearcher has conducted an experiment in which she assigned all of her students four hours of home...

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