Sample size: planned number of observations
The clusters will be equal to the number of legitimate candidates. Based on previous experience we expect to have at least 2400 legitimate job applicants across 3 jobs, but this will likely vary depending on a number of factors. However, we plan to keep the jobs open until we have at least 2400 applicants. A legitimate candidate is someone who resides in the United States and completes the initial application form. We plan to assign an equal proportion of the sample to each treatment except for the zoom treatment, which will have a smaller assignment depending on the available evaluating resources. Further, we will stratify by gender such that there is the same proportion of men/women in each treatment.