A reanalysis is given of data presented by Gillmore in which a paired-item design permitted differentiation between reliability and communality. This analysis yielded results "inconsistent" with traditional reliability theory. A new model based on assumptions about memory is presented which fits...

Three models of a three-nation arms race are presented: an all-against-all model, a model in which two nations are allied against the third, and a model in which one of the nations has a secret alliance with the other two. In the all-against-all situation, the model predicts an infinitely...