For each of the following situations, identify the type of threat to internal validity from the list.

Social Studies

1 answer:

shtirl [24]2 years ago

5 0

Answer:

a) The researcher tested the effectiveness of a new method of teaching drug dosage and solution calculations to nursing students using a standardized calculation examination at the beginning, midpoint, and end of a 2-week course. - MATURATION.

b) In a study of the results of a hypertension teaching program conducted at a senior center, the blood pressures taken by volunteers using their personal equipment were compared before and after the program. - INSTRUMENTATION.

c) The smoking cessation rates of an experimental group consisting of volunteers for a smoking cessation program were compared with the results of a control group of people who wanted to quit on their own without a special program. - SELECTION BIAS.

d) Thirty percent of the subjects dropped out of an experimental study of the effect of a job- training program on employment for homeless women. Over 90% of the dropouts were single homeless women with at least two preschool children, whereas the majority of subjects successfully completing the program had no preschool children. - MORTALITY

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In psychology, Gestalt therapy is a particular type of therapy that has some principles which it works with during therapy.

One of these principles is the principle of closure.

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In the example, a magician has two people concealed in a long wooden box. One person's head and arms stick out of the front and the other's legs stick out of the back. Then the magician saws down the center and it appears that the magician is sawing someone in half.

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