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Posted: June 22nd, 2022
Assignment 8: Manipulation of treatments and randomization
Assignment 8: Manipulation of treatments and randomization.
Two critical factors that distinguish quantitative experimental research from quantitative non experimental research are manipulation of treatments and randomization. Experimental designs are often preferred, as they control for unwanted variance and reduce threats to internal validity. However, sometimes the use of non experimental research is preferred when variables cannot be manipulated or random assignment is not possible. Compare and contrast non experimental and experimental techniques with respect to their aim of the research, and their strengths and weaknesses. Consider the concepts of experimental control, causality, randomization, and the third variable problem in your discussion. Compare and contrast non-experimental and experimental methods in terms of the research goal, their strengths and weaknesses, and how well they meet that goal. In your discussion, think about the ideas of experimental control, causality, randomization, and the third variable problem. Provide one example of when a non experimental method would be used and one example of when an experimental method would be used. Post should be at least 500 words. Respond to at least two of your classmates’ postings
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