1) - For this first Pause-Problem, I want three (brief!) studies (they can all be variations on the same idea). One should use an independent two-group design. One should use a matched OR natural pair design. One should use a repeated measures design.

2) - For this Pause-Problem, I want you to imagine you are doing a study on sexual harassment. Your IV is whether the harasser is the victim's boss or a coworker. I want you to identify four items that may lead to "error variability" in your study. That is, identify four things other than the independent variable that may influence scores on the dependent variable "Whether a decision-maker finds evidence that sexual harassment occurred."