From: What is a pilot or feasibility study? A review of current practice and editorial policy
Study components | Pilot n = 20 | Feasibility n = 34 | Chi-squared1 | P-value |
---|---|---|---|---|
Sample size | 7 (35%) | 3 (8%) | 5.7 | 0.028 |
Hypothesis testing | 14 (70%) | 25 (74%) | 0.78 | 0.51 |
Randomization | 11 (55%) | 8 (24%) | 5.5 | 0.037 |
Blinding | 3 (15%) | 3 (9%) | 0.48 | 0.39 |
Control group | 13 (65%) | 11 (32%) | 5.4 | 0.020 |
Further study suggested | 16 (80%) | 15 (44%) | 6.6 | 0.012 |
Number of participants Median (IQR) [Range] | 62.5 (31, 189) [8, 187777] | 125.5 (36, 1005) [5, 12774614] | -1.04* | 0.29 |