2.We have reviewed the following elements of design: Control, randomization, study setting, and timing of data collection, sample selection, and type of data to be collected. Please explain in outline format how you will address each of these elements of design in your proposed study. Use appropriate terms in describing your design elements. 3.Based on your design elements outline in number 2, identify limitations of your proposed study. Include threats to validity. Be specific as to which elements threaten internal versus external validity AND include how the design of your study attempts to address these or if it has not discuss what elements could be added that would address these threats.