External validity refers to:
A) The degree to which study results can be generalized to other cases not studied as well as to the population in general.
B) Creating equivalent groups through random sampling.
C) The amount of confidence we have that changes in the dependent variable are the result of the independent variable and not some other factor.
D) Minimizing attrition in longitudinal or time series designs.
Correct Answer:
Verified
Q19: Attrition refers to which of the following?
A)
Q20: Which of the following represents one of
Q21: A rival hypothesis is defined as:
A) A
Q22: In a classic experiment, equivalent groups are
Q23: Internal validity refers to:
A) Inferring causation from
Q25: Describe how exploratory, descriptive, and explanatory research
Q26: Explain three ways to randomly assign subjects
Q27: What is the rationale for using random
Q28: What is the difference between random assignment
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