describe and discuss validity and reliability and a good experimental design serves three purposes what are those three purposes 500 700 words

250-350 words each, 1 resource each:

1. Describe and discuss validity and reliability. Identify the threats to experimental validity. How would you go about designing an experimental study that will control for/reduce any potential threats to validity and reliability in your study? Provide at least two reliable references used to justify your responses.

2. A good experimental design serves three purposes, what are those three purposes? Identify a research project that utilizes a quantitative method design. Explain how you would determine the validity and reliability to both the design and the methods of your research.

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