A main difference between the Control Question Test (CQT)and the Concealed Knowledge Test (CKT)is that the CQT is designed to detect lying whereas the CKT is not.

Question

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The Control Question Test (CQT) is designed to detect deception by comparing physiological responses to relevant questions (about the crime) against control questions (related but not directly about the crime). The Concealed Knowledge Test (CKT), on the other hand, is designed to determine if the examinee knows specific details about an event or activity (indicating involvement or knowledge) without necessarily detecting lying directly. It measures responses to multiple-choice questions where only the guilty would know the correct answers, thus not directly assessing truthfulness but rather knowledge of concealed information.

A Main Difference Between the Control Question Test (CQT)and the Concealed