TABLE 2.

Compliance rate by sample size (N) and F‐statistic.

Target F‐statistic	N = 5000	N = 10,000	N = 50,000
10	8%	6%	3%
25	13%	9%	5%
50	18%	13%	6%
100	26%	20%	9%
500	56%	42%	21%
1000	73%	57%	29%

Note: Each cell shows the compliance rate for each value of the Target F‐statistic calculated as the difference in treatment probability between highest and lowest quintile of the instrument, $Z$.