A Longitudinal Study of the Relation Bet

A Longitudinal Study of the Relation Between Language and Theory-of-Mind Development Astington, J. W., & Jenkins, J. M. (1999). A longitudinal study of the relation between language and theory-of-mind development. Developmental psychology, 35(5), 1311.

In short, “Earlier language abilities predicted later theory-of-mind test performance (controlling for earlier theory of mind), but earlier theory of mind did not predict later language test performance (controlling for earlier language). These findings are consistent with the argument that language is fundamental to theory-of- mind development.”