Assignment 3: summarizing the reading Acharya et al. 2013

Defining Study Populations

In this assignment, you will write a paragraph (300 words or less) summarizing the reading

Also, provide a reference page for this reading in APA format (at the end of the page).

After your summary, please answer the following:

1) According to the authors, why is it usually not possible to study the entire population in research? How do they define a sample, and what three factors determine whether a sample is representative?

2) What are Probability Sample and Non-Probability Sample?

3) Compare stratified sampling and quota sampling as described in the article.

• How are they similar?
• What are the key methodological differences between them?
• Why can sampling error be estimated in one but not the other?

Follow the same format as discussed above. Remember, the reference page goes at the end.