This article presents an integrated model of contentious nationalist activity, with structure, politics, and action assuming equal roles in an interdependent causal system. The model is tested using simultaneous equation systems on 130 ethno-nationalist groups from 1990 to 1998. The results confirm the vital, indirect role of grievances and group identity on protest and the powerful direct and ...

On the causal approach to explanation, explaining a phenomenon is telling the actual causal story as to why it occurs. Science is full of idealizing explanations that deliberately falsify the relevant causal story. Therefore, either (a) the causal approach to explanation is mistaken, or (b) idealizing explanations, however convenient, are deeply flawed. Correct? I don’t think so. I show that on...

Past research has shown that educational media, such as a television series or interactive games, can promote significant learning. Today, however, it is quite common for producers to create several interconnected media, such as a television show and an associated web site, under the assumption that multiple platforms elicit greater learning than a single medium would. The research reported bel...