This argument might carry some weight if we had shown mediocre results in one or two studies. But we are reporting on 12 studies. If our mediocre showing had been due merely to chance, then we should show excellent results in at least one or two studies. The cumulative effect of 12 mediocre results is too strong to be ascribed to mere chance. We are doing well enough.
Plenty is wrong with being satisfied with being average.
First of all, if we are satisfied with being average, we shall fall behind the competition pretty soon, because they are not satisfied with being average. Many are catching up and are in the process of overtaking us. And average scholastic achievement leads to average productivity of the work-force and average standard of living. As yet, we are one of the richest countries in the world. We may not remain so much longer unless we improve the educational achievement of our children.