Babbie, E. (2017) (7th ed.). Boston, MA: Cengage Learning.Chapter 3, “The Ethics and Politics of Social Research” Burkholder, G. J., Cox, K. A., & Crawford, L. M. (2016). Baltimore, MD: Laureate Publishing.Chapter 7, “Quality Considerations” Threat to internal validity (will be attached as PDF document) Research_Ethics_Planning_Worksheet (will be attached as doc document)