2134/14535 Nina Attridge Nina Attridge Matthew Inglis Matthew Inglis Intelligence and negation biases on the Conditional Inference Task: a dual-processes analysis Loughborough University 2014 Negative conclusion bias Implicit negation bias Affirmative premise bias Conditional inference Dual-processes 2014-04-29 13:49:40 Journal contribution https://repository.lboro.ac.uk/articles/journal_contribution/Intelligence_and_negation_biases_on_the_Conditional_Inference_Task_a_dual-processes_analysis/9370955 We examined a large set of conditional inference data compiled from several previous studies and asked three questions: How is normative performance related to intelligence? Does negative conclusion bias stem from Type 1 or Type 2 processing? Does implicit negation bias stem from Type 1 or Type 2 processing? Our analysis demonstrated that rejecting denial of the antecedent and affirmation of the consequent inferences was positively correlated with intelligence, while endorsing modus tollens inferences was not; that the occurrence of negative conclusion bias was related to the extent of Type 2 processing; and that the occurrence of implicit negation bias was not related to the extent of Type 2 processing. We conclude that negative conclusion bias is, at least in part, a product of Type 2 processing, while implicit negation bias is not.