Im studying for my Health & Medical class and dont understand how to answer this. Can you help me study?
Explain the threats/limitations of Internal and External Validity. Provide an example of each of the threats/limitations of Internal and External Validity.
Posting should be between 400 600 words in length and answer all of the questions provided, as well as, express the opinions and thoughts of the student. Points will be deducted for each unanswered question. A minimum of four references are required for each posting, two of which may be the course textbooks.
References and in-text citations are to be completed in APA format.
This the text book chapter 10
Dignan, M. B. Measurement and Evaluation of Health Education, 3rd edition. Springfield, IL: Charles C. Thomas. ISBN-13: 978-0398059583
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