Explain how the presence of a control group accounts


Control Group Threats

Explain how the presence of a control group accounts for threats to internal validity. Summarize the types of threats to internal validity that can be avoided by utilizing random assignment to control and experimental groups.

500+ words with 1 reference.

Salkind, N. J. (2012). Exploring Research. (5th ed.). Pearson Prentice Hall.

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