A rejection region of p < 0.05 was used for all statistical tests but effects yielding p -values below 0.10 are mentioned as marginally significant effects.
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P300 amplitudes in the concealed information test are less affected by depth of processing than electrodermal responses.
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The sentences
Moreover, we obtained an overall trend for longer response times in the set of peripheral details, which might indicate that the response selection task was more difficult for this type of information.
The main effect of item type, [ F (1, 19) = 2.78, p = 0.11, f = 0.23], as well as the interaction, [ F (1, 19) = 2.10, p = 0.16, f = 0.13], failed to reach statistical significance.