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The primary purpose of using a representative sample is to enable the generalization of research findings to the broader population. By accurately reflecting the composition of the population, a representative sample helps ensure that the results are not skewed by sample bias.

Generalization and Bias with Representative Samples

A researcher wants to understand the average weekly study time of all university students in a country. They survey 500 students who are all enrolled in advanced organic chemistry at a single, highly competitive university. The study concludes that the average university student in the country studies for 20 hours per week. What is the most significant limitation of this conclusion?

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