How to Detect Concealed Crime Knowledge in Situations With Little Information Using the Forced Choice Test

The Forced Choice Test (FCT) can be used to detect concealed crime knowledge, but it requires more evidence than typically available from a constructed. We propose method repeat individual pieces of achieve the necessary test length, hence widening practical applicability. According our method, FCT trials are created so that on each trial examinees presented with novel and unique decision between two answer alternatives even if specific piece information is again. argue in unique, properties diagnosticity traditional maintained. In experiment 1, we provide proof concept by comparing demonstrate an repeated presentation same has diagnostic value (AUC = .69) albeit less .86). 2, put situation insufficient for alongside Concealed Information (CIT), which also detects relies psychophysiological indices. Both, .81) CIT .83) were combining them increased detection accuracy further .91). If replicated, increase applicability general conjunction CIT.