Examines the development of children's knowledge about the presuppositions of cognitive verbs that take sentential complements. Results indicate that the presuppositions of the factives "know,""forget," and "remember" and the nonfactive "think" are not learned until age four. "Believe," which has factive and nonfactive properties, is mastered…

A study of 5-year olds' ability to distinguish promises from predictions was suspected to have achieved its results due to methodological problems. A similar study with 32 children ages 5 to 6 that used several variations of the previous study's procedures was found to have similar results, suggesting the earlier findings were an accurate…