When a Lot of Knowledge Is a Dangerous Thing The Debilitating Effects of Plan Complexity on Verbal Fluency

Three experiments examined the relationships among plan complexity, access to planned actions, and verbal fluency while pursuing a persuasion goal. Consistent with theoretical expectations, complex planners were less fluent than less complex planners under high access conditions. Persons whose access was raised were less fluent than those whose access was not raised. A second experiment showed that reduced fluency was not induced by lowering of self-confidence. The third experiment replicated the findings of the second experiment and demonstrated that the questioning procedure used to raise access in the first two experiments produced increases in plan complexity as suggested by theory. These findings are discussed in terms of their implications for the study of strategic communication.     

THE “COMPETENT COMMUNICATOR” AS A COGNITIVE PROTOTYPE

Past theories concerned with communicative competence have assumed that perceiver's evaluations of the competence of a communicative performance are based on a conception of the “ideal communicator.” Psychological theory on categorization implies that this assumption is most viable if conceptions of “prototypes” relevant to competence in general (“the communicatively competent person”) are rich in defining characteristics relative to their logical superordinate (“the skilled person”), yet distinct from other skill-related prototypes (such as “the artistically talented person”), and if conceptions of prototypes relevant to competence in specific interactive situations are also relatively rich in defining characteristics, but similar to one another. Analysis of freely elicited lists of characteristics for categories within a taxonomic hierarchy for skill support these implications, showing that people's conceptions of “communicative competence” are organized in the manner most conducive to their use as the basis for competence evaluation. Results also point out the critical role played by concrete, rather than abstract, characteristics in differentiating among general and situation-specific prototypes.