Two word-learning experiments were conducted to investigate the understanding of negative sentences in 18- and 24-month-old children. In Experiment 1, after learning that "bamoule" means "penguin" and "pirdaling" means "cartwheeling," 18-month-olds (n = 48) increased their looking times when listening to…

Languages differ in how they encode causal events, placing greater or lesser emphasis on the agent or patient of the action. Little is known about how these preferences emerge and the relative influence of cognitive biases and language-specific input at different stages in development. In these studies, we investigated the emergence of sentence…

In this study, fourth-grade materials based on a linguistic approach to grammar known as sector analysis were devised, field-tested, and evaluated. Two socioeconomically similar fourth grades--experimental and control groups--were pre- and post-tested to find possible changes in the complexity of their sentence structure after the experimental…

This study compared a grammar program using a linguistic approach with one using a traditional approach to determine how each affects children's ability (1) to construct sentences which have variety in structure, and (2) to comprehend silent reading. Five experimental and five control classes of fourth-grade children were randomly selected from…