| Assessing planning ability with the Tower of London task: Psychometric properties of a structurally balanced problem set. | |
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MedLine Citation:
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PMID: 21859218 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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In clinical and experimental settings, planning ability is typically assessed using the Tower of London (ToL) or one of its variants. For enhancing the comparability across studies, a common ToL problem set was recently suggested comprising a collection of 4- to 7-move problems. Based on previous theoretical and empirical analyses of problem space and task structure, development of the problem set accounted particularly for the influence of structural problem parameters on the detection of individual differences in planning ability. To assess its adequacy as a clinical and research instrument, the present study evaluated the psychometric properties of the suggested problem set. Results showed a clear and nearly perfect linear increase of task difficulty across minimum moves. Given a broad range of item difficulty, high- and low-achieving subjects could be well discriminated. The test scores' split-half reliability (r = .72) and internal consistency (α = .69) were satisfactory. Taken together, the ToL problem set evaluated here proved to have good psychometric qualities and constitutes a conceptually sound basis for diagnostic and research purposes. (PsycINFO Database Record (c) 2011 APA, all rights reserved). |
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Authors:
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Christoph P Kaller; Josef M Unterrainer; Christoph Stahl |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-8-22 |
Journal Detail:
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Title: Psychological assessment Volume: - ISSN: 1939-134X ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-8-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8915253 Medline TA: Psychol Assess Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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