title: Long-term benefits of seeding the knowledge base.
abstract: Exposure to numerical examples (seed facts) produced a substantial long-term reduction in domain-specific innumeracy. In particular, learning the populations of 24 seed countries improved accuracy of estimates of the populations of 75 untrained countries, both at the time of learning and 4 months later. Consistent with abstraction-based theories of learning and memory, the benefits of having been exposed to the seed facts were as large 4 months after the exposure as immediately after it, despite the specific populations of the seed countries having been forgotten during the interval.
authors.affiliation: Department of Psychology, University of Alberta, T6G 2E9, Edmonton, AB, Canada, nbrown@psych.ualberta.ca.
authors.forename: N R
authors.initials: NR
authors.lastname: Brown
authors.forename: R S
authors.initials: RS
authors.lastname: Siegler