John H. Flavell
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John H. Flavell (1928) is an American developmental psychologist specializing in children's cognitive development. Through the discovery of new developmental phenomena and analysis of the theories of Jean Piaget, Flavell shifted the direction of developmental psychology in the United States.
In 1955, Flavell obtained a PhD in psychology from Clark University. He was recognized with an Award for Distinguished Scientific Contributions from the American Psychological Society in 1984, and was elected to the United States National Academy of Sciences in 1994. He is currently an emeritus professor of developmental psychology at Stanford.
Flavell has conducted extensive research into metacognition and the child's theory of mind. One of his most famous contributions to the field is his work on children's developing understanding of the distinction between appearance and reality. These studies assessed young children's ability to acknowledge that a given object is really one kind of thing, yet appears to be another kind of thing, or that a given piece of material is really one color, yet appears to be another color under particular circumstances. Flavell and his colleagues have found that whereas most three-year-olds fail these tasks, five-year-olds and older four-year-olds succeed on them. Flavell interprets this developmental difference as suggesting that children acquire the notion of mental representation of reality as distinct from reality itself. The appearance-reality paradigm, along with the false-belief task, is widely used as diagnostic of theory of mind development during early childhood. Flavell's other work has addressed children's developing understanding of perception, perspective-taking, and their introspective insight into their own subjective experiences.
Flavell has been a beloved advisor and friend of dozens of students throughout his distinguished career.
