Abstract
Two decades of research on the linguistic category model (LCM) have resulted in considerable empirical evidence that can be organized by distinct paradigms: the linguistic intergroup bias, the linguistic expectancy bias, the question-answering paradigm, and language-based attribution. The present article explicates the metatheory underlying the research that was actually conducted within these paradigms. This metatheory provides the organizing structure for a review of potential LCM research that has not been conducted yet because it does not fit the common metatheory. Untapped LCM research encompasses communication failures, deception, the inclusion of measures of effective communication, and the joint determination of language and cognition by social roles and ecological constraints. Because many of these often overlooked topics are theoretically important and practically useful, they suggest themselves as prominent goals of future research.
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