The Influence of Maternal Pragmatics on the Language Skills of Children with Autism.

The study included only 20 dyads, and the authors call it preliminary, so it cannot support broad conclusions about cause or treatment effects. The relationships were measured at baseline, and the study did not test whether changing maternal conversation style changes child language. Mothers were interviewed about sensitive topics such as diagnosis and developmental delay, which may have changed their conversational style. Pragmatic Rating Scale coders were not naive to child diagnostic status because the interview often led mothers to discuss diagnosis. The sample size was too small to examine which specific pragmatic violations were most relevant. Only responsiveness and expansions were coded, so other parent behaviors such as gesture were not considered. The authors also note that parent pragmatics and child language may influence each other over time.

The paper states that the dyads were part of a larger longitudinal study (R324A090181 from the Institute of Education Sciences). It does not give a separate conflict-of-interest declaration.

Do not read the findings as showing that a mother's conversation style causes child language difficulty or that coaching a mother's conversation style will improve child language. The study included 20 dyads, measured associations at baseline, and did not test an intervention.