Progress in science often comes from discovering invariances in relationships among variables; these invariances often correspond to null hypotheses. As is commonly known, it is not possible to state… (More)

Perspectives on psychological science : a journal…

2011

Statistical inference in psychology has traditionally relied heavily on p-value significance testing. This approach to drawing conclusions from data, however, has been widely criticized, and two… (More)

The purpose of the recently proposed prep statistic is to estimate the probability of concurrence, that is, the probability that a replicate experiment yields an effect of the same sign (Killeen,… (More)

In 2005 Psychological Science, the flagship journal of the Association for Psychological Science, began their current practice of asking contributors to compute the statistic prep in lieu of the… (More)

The probability of ‘replication’,prep, has been proposed as a means of identifying replicable and reliable effects in the psychological sciences. We conduct a basic test of prep that reveals it… (More)

The probability of "replication," P(rep), has been proposed as a means of identifying replicable and reliable effects in the psychological sciences. We conduct a basic test of P(rep) that reveals… (More)