Marked inconsistencies and contradictions

Improbable psychiatric symptoms

Mixed symptom profile: endorsement of depressive symptoms while mood is euphoric

Overly dramatic behavior

Extremely unusual responses to questions about improbable situations

Evasiveness or noncooperation

Excessively guarded or hesitant responses

Frequent repetition of questions

Frequent declaration of ignorance (“I don't know”) in response to simple questions

Hostile, intimidating behavior, seeking to control or refusing to participate in the interview

Overemphasis of positive symptoms of schizophrenia