Abstract
This paper addresses the problem of error rate inflation when conducting a sequence of model modifications. The problem is identified as increasing the probability of a Type II error. It is argued that the most effective way of controlling the inflation of the Type II error in the covariance structure modeling context is to choose modifications that have maximum power. Further, it is argued that methodology based on expected parameter change allows researchers to modify models in accordance with substantive considerations as well as minimize the inflation of the Type II error rate.

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