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Med Educ. 2010 Jan;44(1):85-93. doi: 10.1111/j.1365-2923.2009.03498.x.

Cognitive load theory in health professional education: design principles and strategies.

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1
Department of Educational Development and Research, FHML, Maastricht University, Maastricht, The Netherlands. j.vanmerrienboer@educ.unimaas.nl

Abstract

CONTEXT:

Cognitive load theory aims to develop instructional design guidelines based on a model of human cognitive architecture. The architecture assumes a limited working memory and an unlimited long-term memory holding cognitive schemas; expertise exclusively comes from knowledge stored as schemas in long-term memory. Learning is described as the construction and automation of such schemas. Three types of cognitive load are distinguished: intrinsic load is a direct function of the complexity of the performed task and the expertise of the learner; extraneous load is a result of superfluous processes that do not directly contribute to learning, and germane load is caused by learning processes that deal with intrinsic cognitive load.

OBJECTIVES:

This paper discusses design guidelines that will decrease extraneous load, manage intrinsic load and optimise germane load.

DISCUSSION:

Fifteen design guidelines are discussed. Extraneous load can be reduced by the use of goal-free tasks, worked examples and completion tasks, by integrating different sources of information, using multiple modalities, and by reducing redundancy. Intrinsic load can be managed by simple-to-complex ordering of learning tasks and working from low- to high-fidelity environments. Germane load can be optimised by increasing variability over tasks, applying contextual interference, and evoking self-explanation. The guidelines are also related to the expertise reversal effect, indicating that design guidelines for novice learners are different from guidelines for more experienced learners. Thus, well-designed instruction for novice learners is different from instruction for more experienced learners. Applications in health professional education and current research lines are discussed.

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