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External thought—does sketching assist problem analysis?
Author(s) -
Sachse Pierre,
Hacker Winfried,
Leinert Sven
Publication year - 2004
Publication title -
applied cognitive psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.719
H-Index - 100
eISSN - 1099-0720
pISSN - 0888-4080
DOI - 10.1002/acp.992
Subject(s) - sketch , pulley , recall , psychology , representation (politics) , control (management) , cognitive psychology , computer science , artificial intelligence , algorithm , engineering , mechanical engineering , politics , law , political science
An experimental study ( n = 60 students) tests the advantages of being allowed to sketch a representation of a mechanical system (involving components such as weights, ropes and pulleys) when one is to be subsequently asked questions about this system. In comparison to a control group who were not allowed to sketch the system, the main advantages of sketching were found to be a reduction in the perceived difficulty of the problems and an increase in the likelihood of correctly inferring relations between the components. These advantages came at no extra cost in terms of additional time being needed to analyse the situation or solve the problems. However, sketching conferred no advantage in terms of the correct recall of system components. Copyright © 2004 John Wiley & Sons, Ltd.