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K. I. Manktelow

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Publications by K. I. Manktelow (bibliography)

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1988
 
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Stevenson, Rosemary J., Manktelow, K. I. and Howard, M. J. (1988): Knowledge Elicitation: Dissociating Conscious Reflections from Automatic Processes. In: Jones, Dylan M. and Winder, R. (eds.) Proceedings of the Fourth Conference of the British Computer Society Human Computer Interaction Specialist Group - People and Computers IV August 5-9, 1988, University of Manchester, UK. pp. 565-579.

One major difficulty with standard techniques of knowledge elicitation is that they require an expert to give a verbal report of his or her knowledge. This assumes that people have conscious access to all of their cognitive processes. 'Thinking aloud' techniques explicitly make this assumption. However, recent developments in cognitive psychology suggest that this assumption is not appropriate. When solving a problem, people may use fast, automatic processes which are not available to conscious reflection. These fast automatic processes can be distinguished from conscious reflection. Two computer programming experts were videoed while each taught a class of students some basic programming concepts. Four 'novice' students from each class were also videoed while explaining the taught material to another person. These videos recorded the fast, automatic actions of people describing concepts. A week later, each person's video was played back to them and key questions were asked about the subject's intentions at different points in the video. These interviews recorded the conscious evaluations and interpretations of the original performance. The reports given at these interviews were classified into production rules. A standard knowledge elicitation technique was also used on the same subjects and the same material. Subjects were presented with ten concept names from the lectures and carried out paired comparisons of the ten concept names. The outcome of the paired comparisons was then subjected to multidimensional scaling. The type and extent of the knowledge elicited in the two situations is compared for both experts and novices.

© All rights reserved Stevenson et al. and/or Cambridge University Press

1986
 
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Ormerod, Thomas C., Manktelow, K. I., Robson, E. H. and Steward, A. P. (1986): Content and Representation Effects with Reasoning Tasks in PROLOG Form. In Behaviour and Information Technology, 5 (2) pp. 157-168.

Two experiments were carried out to examine human reasoning performance in the context of the logic programming language PROLOG. Two factors, "content" (familiar versus unfamiliar) and "representation" (diagrammatic versus PROLOG-like list) were investigated. Subjects answered questions about hierarchical relationships in each condition. A significant interaction was obtained in both experiments, subjects making fewer errors in the familiar-diagram and unfamiliar-list conditions than in the familiar-list and unfamiliar-diagram conditions. It is hypothesized that a lower percentage of correct responses was given in familiar-list and unfamiliar-diagram conditions because the representation of information prevented successful use of an appropriate reasoning strategy. Working memory limitations provide a basis for understanding constraints on reasoning strategies for solving task questions. These strategies may involve either a serial or a spatial solution process. One strategy may require a larger working memory load than another, depending on the representation and content of task information. Implications for PROLOG programming instruction are discussed.

© All rights reserved Ormerod et al. and/or Taylor and Francis

 
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Changes to this page (author)

14 Feb 2010: Modified
28 Apr 2003: Added

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May 24

For a list of all the ways technology has failed to improve the quality of life, please press three.

-- Alice Kahn

 
 

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Read the fascinating history of Wearable Computing, told by its father, Steve Mann

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