chalolomarie1452 chalolomarie1452

27-12-2022
Social Studies

Answered

Dr. Weber conducted a long term study in which two people were tested on happiness, asked to make two new friends, and then tested on happiness 1 month later. He noticed that six of the most introverted people dropped out by the last session. Therefore, his study might have which of the following internal validity threats?
a. Attrition.
b. Maturation.
c. Selection.
d. Regression.

Answer :

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