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Research Methods Review

Respond to the following questions from the Research Methods Unit to help yourself clarify your understanding.

Question 1

Short answer

Explain the difference between validity and reliability.

Question 2

Short answer

Explain the difference between random sample and random assignment.

Question 3

Short answer

How is a hypothesis different from a theory?

Question 4

Short answer

Of mean, median, and mode, which is most affected by outliers?

Question 5

Short answer

If the data is more spread out, will the standard deviation be larger or smaller?

Question 7

Short answer

What is the difference between the experimental group and control group?

Question 8

Short answer

If you wanted to study the impact of different variables on career choice, would you use a case study, naturalistic observation, survey, correlation study, or experiment? And why?

Question 9

Short answer

If you wanted to study the impact of exercise on energy, could you do a single blind study? Why or why not?

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