Answering two criticisms of hypothesis testing: A comment

In a recent article, Leventhal (1999) responds to two criticisms of hypothe sis testing by showing that the one-tailed test and the directional two-tai led test are Valid. even if all point null hypotheses are false and that hy pothesis tests can provide the probability of decisions being correct which are based on the tests. Unfortunately, the falseness of all point null hyp otheses affects the operating characteristics of the directional two-tailed test, seeming to weaken certain of Leventhal's arguments in favor of this procedure.