Background: Physicians often are called on to participate in and interpret
clinical trials, but their training in this area may not provide them with
the inquiry skills that are needed. Simulations have the potential to be a
promising tool for helping medical students learn the skills involved in cl
inical trial design. However simulations may be complex and require additio
nal scaffolding to support learning.
Description: The goal of this study was to teach aspects of cancer clinical
trial design through the scaffolded use of a simulation, the Oncology Thin
king Cap. The software-based scaffolding provided guidance in designing the
trial. Subsequently, the simulation allowed students to run the designed t
rial, which produces detailed patient histories. This feedback then could b
e used to redesign the trial.
Evaluation: Twenty-four 4th-year medical students were asked to design a cl
inical trial in advance, on paper to test a new anticancer drug. Student gr
oups then designed and simulated running the clinical trial assisted by the
software environment. Instructional effectiveness was measured using a pre
test-posttest design that included having students (a) write a group resear
ch proposal and (b) individually critique a flawed proposal. At the group l
evel (N = 6 groups), students demonstrated a 34% increase in the number of
elements of a clinical trial that they included in their research proposals
. At the individual level (N = 24), students improved by 48% in their criti
ques of flawed proposals
Conclusions: Scaffolding embedded in the simulator is a promising approach
to helping students learn about clinical trial design. Copyright (C) 2001 b
y Lawrence Erlbaum Associates, Inc.