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Week 8 Writing Assignment: Threats to Internal Validity

For this writing assignment you’ll need to consider threats to internal validity. Your response should include the following information:

a. A definition of internal validity in your own words (1 pt)

b. An explanation for why researchers should care about internal validity (1 pt)

c. A description of four specific threats to internal validity, including a research-based example of each. Be sure to explain how your example demonstrates each threat. Note that you can use four separate examples or one complex example that could include multiple threats. (2 pts each; 8 pts total)

d. A description of the solution to each threat described in part C and an explanation for why that solution resolves the threat. (1 pt each; 4 pts total)

Your write up for this assignment should be about 1-2 pages in length. It should be written using full sentences. All content should be written in your own words – no quotes allowed!

Your assignment must be double spaced with 1” margins and typed in size 12 Times New Roman font. It should be free of spelling and grammar errors (1 pt).