Ian Dennis [3]Ian Howard Dennis [1]
  1.  54
    Working Memory and Reasoning: An Individual Differences Perspective.Alison Capon, Simon Handley & Ian Dennis - 2003 - Thinking and Reasoning 9 (3):203 – 244.
    This article reports three experiments that investigated the relationship between working memory capacity and syllogistic and five-term series spatial inference. A series of complex and simple verbal and spatial working memory measures were employed. Correlational analyses showed that verbal and spatial working memory span tasks consistently predicted syllogistic and spatial reasoning performance. A confirmatory factor analysis showed that three factors best accounted for the data--a verbal, a spatial, and a general factor. Syllogistic reasoning performance loaded all three factors, whilst spatial (...)
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  2.  35
    Problem-Solving Strategies and Expertise in Engineering Design.Linden J. Ball, Jonathan StB. T. Evans, Ian Dennis & Thomas C. Ormerod - 1997 - Thinking and Reasoning 3 (4):247-270.
    A study is reported which focused on the problem-solving strategies employed by expert electronics engineers pursuing a real-world task: integrated-circuit design. Verbal protocol data were analysed so as to reveal aspects of the organisation and sequencing of ongoing design activity. These analyses indicated that the designers were implementing a highly systematic solution-development strategy which deviated only a small degree from a normatively optimal top-down and breadth-first method. Although some of the observed deviation could be described as opportunistic in nature, much (...)
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  3. On Necessity as a Defence to Crime: Possibilities, Problems and the Limits of Justification and Excuse.Ian Howard Dennis - 2009 - Criminal Law and Philosophy 3 (1):29-49.
    The article reviews recent developments in England in the law of necessity as a defence to crime and calls for its further extension. It argues that the defence of necessity presents the criminal law with difficult questions of competing values and the ordering of harms. English law has taken a nuanced position on the respective roles of the courts and the legislature in the ordering of harms, although the development of the law has been pragmatic rather than coherently theorised. The (...)
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  4.  79
    Predicting the Difficulty of Complex Logical Reasoning Problems.Stephen E. Newstead, Peter Bradon, Simon J. Handley, Ian Dennis & Jonathan St B. T. Evans - 2006 - Thinking and Reasoning 12 (1):62 – 90.
    The aim of the present research was to develop a difficulty model for logical reasoning problems involving complex ordered arrays used in the Graduate Record Examination. The approach used involved breaking down the problems into their basic cognitive elements such as the complexity of the rules used, the number of mental models required to represent the problem, and question type. Weightings for these different elements were derived from two experimental studies and from the reasoning literature. Based on these weights, difficulty (...)
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