Children aged 3 to 8 years old and adults were tested on a reality–fantasy distinction task. They had to judge whether particular entities were real or fantastical, and response times were collected. We further manipulated whether the entity is a specific character or a generic fantastical entity. The results indicate that children, unlike adults,…

Discrimination learning set performance was examined in preschool children as a function of age and number of trials per problem. Subjects were 120 children three, four, five, and six years old. (MP)

Trained preschoolers and adults on three sets of successive discriminations with stimuli labeled A, B, and R. Tested for derived stimulus-response relations and stimulus-stimulus relations. Adults displayed class-consistent B-R and A-B performances over all conditions. Children's display of class-consistent B-R performance varied by training…

The structure of the testing condition is an important variable in measuring young children's language comprehension. This study examined effects of two testing conditions on the language comprehension scores of 24 toddlers, mean age 20.3 months. The methodology was based on the rationale that a test which allows parents to select stimuli which…