A study on median house prices in Middlesex county used a random sample of 200 houses from three zip codes of the county. Which dimension of 'importance' of study results would this sampling affect? Choose the best answer.
A) internal validity
B) statistical significance
C) external validity
D) practical importance

Question

Quizplus · Accepted Answer

External validity refers to the extent to which the results of a study can be generalized or applied to other settings, populations, or situations. By sampling houses from only three zip codes in Middlesex county, the study's findings may not be generalizable to the entire county or to other regions, affecting the study's external validity.

A Study on Median House Prices in Middlesex County Used