Sample size | Post-treatment score | Change score | ||||||
---|---|---|---|---|---|---|---|---|
 | ANCOVA v. Mann-Whitney | log ANCOVA v. Mann-Whitney | ANCOVA v. Mann-Whitney | log ANCOVA v. Mann-Whitney | ||||
 | Shift | Ratio | Shift | Ratio | Shift | Ratio | Shift | Ratio |
10 | 3.0404 | 4.1864 | 0.8862 | 1.1179 | 1.2586 | 1.9736 | 0.5567 | 0.539 |
20 | 1.2037 | 2.6045 | 0.8073 | 1.2589 | 0.5480 | 0.7372 | 0.3473 | 0.2983 |
30 | 1.1503 | 1.7717 | 0.9409 | 1.2707 | 0.3084 | 0.3860 | 0.2472 | 0.2701 |
40 | 1.1730 | 1.4786 | 1.0233 | 1.4105 | 0.2643 | 0.2772 | 0.2446 | 0.2421 |
60 | 1.1853 | 1.2015 | 1.1118 | 1.4062 | 0.2115 | 0.2121 | 0.1898 | 0.2586 |
100 | 1.2682 | 1.0648 | 1.1842 | 1.4789 | 0.2224 | 0.1753 | 0.2065 | 0.2545 |
200 | 1.2880 | 0.9257 | 1.2570 | 1.5437 | 0.2078 | 0.1496 | 0.1985 | 0.2544 |
400 | 1.3576 | 0.9089 | 1.3112 | 1.5308 | 0.1961 | 0.1358 | 0.1816 | 0.2418 |
800 | 1.4222 | - | 1.4116 | - | 0.2038 | - | 0.1783 | 0.2444 |