早产儿和足月儿母子互动风格与后期表达性词汇量的关系：一项两阶段纵向研究

Maternal interactive style may support early language, yet whether its dimensions relate differently to expressive vocabulary by birth status remains unclear. A two-wave longitudinal study included 149 Chinese mother–child dyads (59 preterm, 90 term; ages 9–30 months); 124 completed a four-month follow-up. Maternal interactive style was coded from free play, and mothers reported children’s expressive vocabulary. Principal component analysis yielded three components: Positive Interaction Support, Support for Autonomous Exploration, and Emotional-Affective Support. A Linear mixed model tested gr