Reanalysis of previously published data suggests the Defense Mechanism Inventory can yield a composite measure of reaction to frustration by contrasting linearly the defenses Turning-against-object and Projection against those of Principalization and Reversal-of-affect. Factor-analytic and correlational data support the exclusion of…

Statistical significance is not a sufficient condition for claiming a hypothesis has been supported. Constructive replications are more important. Statistically significant results may be meaningless while a sequence of nonsignificant results may be quite important. Gives advice on how to overcome some limitations of classifical statistical…

Examined the utility of the aggregation method as a measure of behavioral consistency in 26 studies involving computer-generated, repeated-measurement data. Concluded that aggregation produces spuriously high estimates of behavioral consistency. The Spearman-Brown prophecy formula and coefficient alpha accurately predict the results of the…