We demonstrate a U-shaped developmental trajectory in the interpretation of scopally ambiguous sentences, with 4-year-olds and adults, but not 5-year-olds, accessing inverse scope. These results argue against any view that treats 5-year-olds failures as resulting from immaturity of a single mechanism. Instead, we propose that this developmental…

Explores the concept of ambiity in semantic relationships, and discusses several causes of relational ambiguity, including differing world views, subtext construction, and selective focusing. Asserts that while most instances of relational ambiguity do not impair text comprehension, readers should be aware of possible ambiguities. (MM)