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Expert and novice solutions of genetic pedigree problems
Journal article   Peer reviewed

Expert and novice solutions of genetic pedigree problems

M.W. Hackling and J.A. Lawrence
Journal of Research in Science Teaching, Vol.25(7), pp.531-546
1988
DOI: https://doi.org/10.1002/tea.3660250703
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Abstract

This study compared the problem-solving performance of university genetics professors and genetics students, and therefore fits the expert versus novice paradigm. The subjects solved three genetic pedigree problems. Data were gathered using standard think-aloud protocol procedures. Although the experts did not differ from the novices in terms of the number of correct solutions obtained, there were significant differences favoring the experts in terms of the completeness and conclusiveness of the solutions. The experts identified more critical cues in the pedigrees which were used to generate and test hypotheses, they tested more hypotheses by assigning genotypes to individuals in the pedigrees, and were more rigorous than the novices in the falsification of alternative hypotheses. The experts varied their problem-solving strategy to suit the particular conditions of problems involving rare or common traits. Novices did nor recognize the need to make such modifications to their strategies.

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Source: InCites

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Citation topics
6 Social Sciences
6.11 Education & Educational Research
6.11.295 Science Education
Web Of Science research areas
Education & Educational Research
ESI research areas
Social Sciences, general
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