The effect of question expectedness and experience on lying about intentions

Lara Warmelink, Aldert Vrij, Samantha Mann, Shyma Jundi, P. Granhag

Research output: Contribution to journalArticlepeer-review


In recent years researchers have started to focus on lying about intentions (Granhag, 2010). In the present experiment participants were interviewed about their forthcoming trip. We tested the hypothesis that liars (N = 43) compared to truth tellers (N = 43) would give fewer details to unexpected questions about planning, transportation and the core event, but an equal amount or more detail to expected questions about the purpose of the trip. We also tested the hypothesis that participants who had previously experienced the intention (i.e., they had made such a trip before) would give more detail than those who had never experienced the intended action. The unexpected question hypothesis was supported, whereas the previous experience effect only emerged in interactions. The benefit of using different types of questions for lie detection purposes is discussed.
Original languageEnglish
Pages (from-to)178-183
Number of pages6
JournalActa Psychologica
Issue number2
Publication statusPublished - Oct 2012


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