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There is a variety of types of experimental designs. Examine the role of these designs as well as the significance of internal and external validity within this context.

Essay needs to be at least 550 words. The book listed, Exploring Research by Neil J. Salkind 9th Edition, ISBN: 13: 978-0-13-423841-8, and needs to be included. Intro – Body – Conclusion. I have uploaded the direction. The assignment topic is listed above.