title: Education research. Instructional complexity and the science to constrain it.
authors.affiliation: Carnegie Mellon University, Pittsburgh, PA 15213, USA.
authors.forename: Kenneth R
authors.initials: KR
authors.lastname: Koedinger
authors.forename: Julie L
authors.initials: JL
authors.lastname: Booth
authors.forename: David
authors.initials: D
authors.lastname: Klahr
mesh_terms: D003657:Decision Making; D018961:Educational Technology / Q000379:methods*; D006801:Humans; D007858:Learning; D009862:Online Systems; D012106:Research