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NNADVOKAT [17]
3 years ago
8

Thirty percent of the subjects dropped out of an experimental study looking at the effect of a job training program on employmen

t for homeless women. over 90% of the dropouts were single homeless women with at least two preschool children, while the majority of subjects successfully completing the program had no preschool children. what threat to internal validity could be present?
Social Studies
1 answer:
Llana [10]3 years ago
7 0
<span>The threat to internal validity is the Mortality. Internal validity is the measure in which the causality of the stimuli studied is analyzed, that is, if the results of the study are due to the interaction of the variables analyzed or are due to the interaction with other variables. <span>Mortality is an error that occurs if the conclusions of the study are made only on the basis of the participants who were from beginning to end in the investigation, without taking into account those who left the study.

I hope my answer can help you.
</span></span>
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Hitman42 [59]

Answer:

Colonialism   

Explanation:

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The Tigris and the Euphrates rivers have always been important to civilization. These two rivers cross through the ancient area of Mesopotamia, which is considered the "cradle of civilization."

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Answer:

The answers are:

a. dependent

b. independent

c. test

d. control

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In scientific research, investigations are done to study whether certain factors change while changing others, and the following terms are associated with  scientific research:

a. dependent variable: These are factors or outcomes that are being investigated in a research experiment, and they are not under the direct control of the researcher. They are factors that vary as a result of other changes made in the process. In our example, the heart rate and blood pressure are proposed to vary with the type of film watched hence these factors are dependent variables.

b. independent variable: Independent variables are variables that are under the direct manipulation of the researcher, and the predetermined variation of these variables cause certain effects on the dependent variables. In our example, the type of film is the independent variable, because the researcher has complete control over the type of film watched.

c. Test group: These are the group of participants/individuals in research, who will potentially be affected by the change in the dependent variable to cause an effect that deviates from the normal. In our example, the group that views the violent film is the test group, because there is a tendency that they might have altered heart rate and blood pressure as a result of the type of film viewed.

d. control group: The control group is the group of individuals whose effects at the end of the experiments will serve as baseline effects, to serve as a means of measuring the magnitude of variation in the test group. These groups serve to eliminate any other effects that might cause similar changes as the factor being investigated in all test participants.

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Depending by how answer choices you can pick I'd say three. So, the correct answers would be D, A, and E.

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