title: Understanding Genetic Breast Cancer Risk: Processing Loci of theBRCA GistIntelligent Tutoring System.
abstract: TheBRCA GistIntelligent Tutoring System helps women understand and make decisions about genetic testing for breast cancer risk.BRCA Gistis guided by Fuzzy-Trace Theory, (FTT) and built using AutoTutor Lite. It responds differently to participants depending on what they say. Seven tutorial dialogues requiring explanation and argumentation are guided by three FTT concepts: forming gist explanations in one's own words, emphasizing decision-relevant information, and deliberating the consequences of decision alternatives. Participants were randomly assigned toBRCA Gist, a control, or impoverishedBRCA Gistconditions removing gist explanation dialogues, argumentation dialogues, or FTT images. AllBRCA Gistconditions performed significantly better than controls on knowledge, comprehension, and risk assessment. Significant differences in knowledge, comprehension, and fine-grained dialogue analyses demonstrate the efficacy of gist explanation dialogues. FTT images significantly increased knowledge. Providing more elements in arguments against testing correlated with increased knowledge and comprehension.
authors.affiliation: Miami University, Oxford, OH.
authors.forename: Christopher R
authors.initials: CR
authors.lastname: Wolfe
authors.affiliation: Cornell University, Ithaca, NY.
authors.forename: Valerie F
authors.initials: VF
authors.lastname: Reyna
authors.affiliation: Miami University, Oxford, OH.
authors.forename: Colin L
authors.initials: CL
authors.lastname: Widmer
authors.affiliation: Miami University, Oxford, OH.
authors.forename: Elizabeth M
authors.initials: EM
authors.lastname: Cedillos-Whynott
authors.affiliation: Cornell University, Ithaca, NY.
authors.forename: Priscila G
authors.initials: PG
authors.lastname: Brust-Renck
authors.affiliation: Miami University, Oxford, OH.
authors.forename: Audrey M
authors.initials: AM
authors.lastname: Weil
authors.affiliation: University of Memphis, Memphis, TN and Central China Normal University, Wuhan, China.
authors.forename: Xiangen
authors.initials: X
authors.lastname: Hu
keywords: Breast Cancer; Fuzzy-Trace Theory; Genetic Testing; Intelligent Tutoring System; Medical Decision-Making