A comprehensive meta?analysis of the comparison question polygraph test

We conducted a meta-analysis on the most commonly used forensic polygraph test, Comparison Question Test. captured as many studies possible by using broad inclusion criteria. Data and potential moderators were coded from 138 datasets. The meta-analytic effect size including inconclusive outcomes was 0.69 [0.66, 0.79]. found significant moderator effects. Notably, level of motivation had positive linear relationship with our outcome measures. Information Gain analysis CQT representing median accuracy showed information increase over interpersonal deception detection across almost complete range base rates. Our results suggest that can be accurate, experimental are generalizable, no publication bias detected. discussed limitations field research literature problems within profession lower accuracy. some solutions.