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Need for Cognition (NFC), the tendency to engage in and enjoy thinking, is usually directly measured via self-report. In order to validate an indirect NFC Implicit Association Test, we followed up on evidence suggesting NFC to be related to electrocortical indicators of bottom-up and top-down attention allocation in an oddball paradigm. In 99 participants, we did not find effects of directly and indirectly measured NFC on the processing of task-irrelevant stimuli, but found a main effect of explicit NFC on bottom-up target processing and an interactive effect of explicit and implicit NFC on top-down target processing. These findings further implicate NFC in the modulation of attention allocation and highlight the usefulness of direct and indirect measures in individual differences research.
