Find an experimental research study on the topic chosen in Week One for your Final Research Proposal. You may choose to include an experimental study which was included in the literature review you used in the Week One assignment by searching the reference list for experimental research studies on the topic. However, it is also acceptable to find and include an experimental research study on the topic that is not included in that literature review. Identify the specific experimental research design used in the study. Summarize the main points of the experimental research study including information on the hypothesis, sampling strategy, research design, statistical analysis, results, and conclusion(s). Evaluate the published experimental research study focusing on and identifying the specific threats to validity that apply to the chosen study. Explain whether or not these threats were adequately addressed by the researchers. Describe how the researchers applied ethical principles in the research study.