Why is it important to use a representative sample in research?

Which of the following best describes a representative sample?

What is a key characteristic of a representative sample in research?

Which of the following is a benefit of using a representative sample in research?

Generalization and Bias with Representative Samples

Example of a Non-Representative Sample

Example of a Representative Sample

Standard Deviation

What is the primary characteristic of a representative sample?

A researcher wants to study stress levels among all university students at a large campus. She recruits participants by posting a sign-up sheet only in the first-year psychology building. Because all of her participants are university students, her sample can be considered representative of the entire university student body.

A researcher is planning several studies and needs to ensure their findings can generalize to their intended populations. Match each target population with the sample that would be most representative of it.

Analyze the following sampling scenarios for a research study investigating the average sleep quality of all students at a large university. Arrange these strategies in order from the highest degree of representativeness (1) to the lowest degree of representativeness (4) based on how well they mirror the target population.