Today, we're talking about control groups: What are they? Do all experiments have a control group? Ethical issues related to being in the control group Correlations, Experiments, and Pseudoexperiments: https://youtu.be/PMH4A36pJPo Classical Conditioning Control Groups: https://youtu.be/TurkH-NdBDY References and Further Reading: Froh, J. J., Kashdan, T. B., Ozimkowski, K. M., & Miller, N. (2009). Who benefits the most from a gratitude intervention in children and adolescents? Examining positive affect as a moderator. The journal of positive psychology, 4(5), 408-422. https://doi.org/10.1080/17439760902992464 Wampold, B. E., Budge, S. L., Laska, K. M., Del Re, A. C., Baardseth, T. P., Flűckiger, C., ... & Gunn, W. (2011). Evidence-based treatments for depression and anxiety versus treatment-as-usual: a meta-analysis of direct comparisons. Clinical psychology review, 31(8), 1304-1312. https://doi.org/10.1016/j.cpr.2011.07.012 Watts, S. E., Turnell, A., Kladnitski, N., Newby, J. M., & Andrews, G. (2015). Treatment-as-usual (TAU) is anything but usual: a meta-analysis of CBT versus TAU for anxiety and depression. Journal of Affective Disorders, 175, 152-167. https://doi.org/10.1016/j.jad.2014.12.025