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  1. Constantinos Hadjichristidis, Steven A. Sloman & David E. Over (2014). Categorical Induction From Uncertain Premises: Jeffrey's Doesn't Completely Rule. Thinking and Reasoning 20 (4):405-431.
    Studies of categorical induction typically examine how belief in a premise (e.g., Falcons have an ulnar artery) projects on to a conclusion (e.g., Robins have an ulnar artery). We study induction in cases in which the premise is uncertain (e.g., There is an 80% chance that falcons have an ulnar artery). Jeffrey's rule is a normative model for updating beliefs in the face of uncertain evidence. In three studies we tested the descriptive validity of Jeffrey's rule and a related probability (...)
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  2. Janneke Wijnbergen‐Huitink, Shira Elqayam & David E. Over (2014). The Probability of Iterated Conditionals. Cognitive Science 38 (8):n/a-n/a.
    Iterated conditionals of the form If p, then if q, r are an important topic in philosophical logic. In recent years, psychologists have gained much knowledge about how people understand simple conditionals, but there are virtually no published psychological studies of iterated conditionals. This paper presents experimental evidence from a study comparing the iterated form, If p, then if q, r with the “imported,” noniterated form, If p and q, then r, using a probability evaluation task and a truth-table task, (...)
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  3. Jean Baratgin, David E. Over & Guy Politzer (2013). Uncertainty and the de Finetti Tables. Thinking and Reasoning 19 (3-4):308-328.
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  4. Shira Elqayam & David E. Over (2013). New Paradigm Psychology of Reasoning: An Introduction to the Special Issue Edited by Elqayam, Bonnefon, and Over. Thinking and Reasoning 19 (3-4):249-265.
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  5. Jonathan St B. T. Evans & David E. Over (2013). Reasoning to and From Belief: Deduction and Induction Are Still Distinct. Thinking and Reasoning 19 (3-4):267-283.
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  6. Jean Baratgin, David E. Over & Guy Politzer (2011). Betting on Conditionals. Thinking and Reasoning 16 (3):172-197.
    A study is reported testing two hypotheses about a close parallel relation between indicative conditionals, if A then B , and conditional bets, I bet you that if A then B . The first is that both the indicative conditional and the conditional bet are related to the conditional probability, P(B|A). The second is that de Finetti's three-valued truth table has psychological reality for both types of conditional— true , false , or void for indicative conditionals and win , lose (...)
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  7. David E. Over (2011). New Paradigm Psychology of Reasoning. Thinking and Reasoning 15 (4):431-438.
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  8. Jonathan St B. T. Evans & David E. Over (2010). Conditional Truth: Comment on Byrne and Johnson-Laird. Trends in Cognitive Sciences 14 (1):5.
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  9. David E. Over & Constantinos Hadjichristidis (2009). Uncertain Premises and Jeffrey's Rule. Behavioral and Brain Sciences 32 (1):97-98.
    Oaksford & Chater (O&C) begin in the halfway Bayesian house of assuming that minor premises in conditional inferences are certain. We demonstrate that this assumption is a serious limitation. They additionally suggest that appealing to Jeffrey's rule could make their approach more general. We present evidence that this rule is not limited enough to account for actual probability judgements.
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  10. Jonathan St B. T. Evans & David E. Over (2008). Whole Mind Theory: Massive Modularity Meets Dual Processes. Thinking and Reasoning 14 (2):200 – 208.
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  11. Jonathan StB. T. Evans, Helen Neilens, Simon J. Handley & David E. Over (2008). When Can We Say 'If'? Cognition 108 (1):100-116.
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  12. David E. Over (2007). The Logic of Natural Sampling. Behavioral and Brain Sciences 30 (3):277-277.
    Barbey & Sloman (B&S) relegate the logical rule of the excluded middle to a footnote. But this logical rule is necessary for natural sampling. Making the rule explicit in a logical tree can make a problem easier to solve. Examples are given of uses of the rule that are non-constructive and not reducible to a domain-specific module.
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  13. David E. Over (2005). A Philosophical Guide to Conditionals. By Jonathan Bennett. Clarendon Press: Oxford, 2003. Pp. XII + 387. Mind and Language 20 (3):357–363.
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  14. David E. Over (2005). A Philosophical Guide to Conditionals. Mind and Language 20 (3):357-363.
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  15. David E. Over (ed.) (2003). Evolution and the Psychology of Thinking: The Debate. Psychology Press.
    In this collection, leading experts evaluate the status of this controversial field, providing a critical analysis of its main hypotheses These hypotheses have ...
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  16. David E. Over (2003). From Massive Modularity to Metarepresentation: The Evolution of Higher Cognition. In , Evolution and the Psychology of Thinking: The Debate. Psychology Press. 121--144.
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  17. David E. Over & Jonathan St B. T. Evans (2003). The Probability of Conditionals: The Psychological Evidence. Mind and Language 18 (4):340–358.
    The two main psychological theories of the ordinary conditional were designed to account for inferences made from assumptions, but few premises in everyday life can be simply assumed true. Useful premises usually have a probability that is less than certainty. But what is the probability of the ordinary conditional and how is it determined? We argue that people use a two stage Ramsey test that we specify to make probability judgements about indicative conditionals in natural language, and we describe experiments (...)
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  18. Jonathan St B. T. Evans & David E. Over (2002). The Role of Language in the Dual Process Theory of Thinking. Behavioral and Brain Sciences 25 (6):684-685.
    Carruthers’proposals would seem to implicate language in what is known as System 2 thinking (explicit) rather than System 1 thinking (implicit) in contemporary dual process theories of thinking and reasoning. We provide outline description of these theories and show that while Carruthers’characterization of non-verbal processes as domain-specific identifies one critical feature of System 1 thinking, he appears to overlook the fact that much cognition of this type results from domain-general learning processes. We also review cognitive psychological evidence that shows that (...)
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  19. David E. Over (2002). The Rationality of Evolutionary Psychology. In Jose Luis Bermudez & Alan Millar (eds.), Reason and Nature. Clarendon. 187--207.
  20. Rosemary J. Stevenson & David E. Over (2001). Reasoning From Uncertain Premises: Effects of Expertise and Conversational Context. Thinking and Reasoning 7 (4):367 – 390.
    Four experiments investigated uncertainty about a premise in a deductive argument as a function of the expertise of the speaker and of the conversational context. The procedure mimicked everyday reasoning in that participants were not told that the premises were to be treated as certain. The results showed that the perceived likelihood of a conclusion was greater when the major or the minor premise was uttered by an expert rather than a novice (Experiment 1). The results also showed that uncertainty (...)
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  21. Jonathan St B. T. Evans, Simon J. Handley, Nick Perham, David E. Over & Valerie A. Thompson (2000). Frequency Versus Probability Formats in Statistical Word Problems. Cognition 77 (3):197-213.
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  22. Jonathan StB. T. Evans, Simon J. Handley, Nick Perham, David E. Over & Valerie A. Thompson (2000). Frequency Versus Probability Formats in Statistical Word Problems. Cognition 77 (3):197-213.
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  23. David E. Over (2000). Ecological Issues: A Reply to Todd, Fiddick, & Krauss. Thinking and Reasoning 6 (4):385 – 388.
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  24. Jonathan St B. T. Evans & David E. Over (1999). Explicit Representations in Hypothetical Thinking. Behavioral and Brain Sciences 22 (5):763-764.
    Dienes' & Perner's proposals are discussed in relation to the distinction between explicit and implicit systems of thinking. Evans and Over (1996) propose that explicit processing resources are required for hypothetical thinking, in which mental models of possible world states are constructed. Such thinking requires representations in which the individuals' propositional attitudes including relevant beliefs and goals are made fully explicit.
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  25. Jonathan St B. T. Evans, David E. Over & Peter Carruthers (1998). Rationality and Reasoning. British Journal for the Philosophy of Science 49 (1):189-194.
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  26. David W. Green & David E. Over (1998). Reaching a Decision: A Reply to Oaksford. Thinking and Reasoning 4 (2):187-192.
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  27. David W. Green, David E. Over & Robin A. Pyne (1997). Probability and Choice in the Selection Task. Thinking and Reasoning 3 (3):209-235.
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  28. K. Manktelow & David E. Over (1987). Reasoning and Rationality. Mind and Language 2 (3):199-219.