The Childhood Trauma Questionnaire (CTQ; 28-item version), a self-report instrument, assesses child-hood maltreatment in five areas: emotional abuse, physical abuse, sexual abuse, emotional neglect, and physical neglect. Subjects rate statements about childhood experiences (before age 18) on five-point Likert-type scales, (“never true” to “very often true”). Most items are phrased in objective terms (e.g., “When I was growing up, someone touched me in a sexual way or made me touch them”), whereas other items require subjective evaluation (e.g., “When I was growing up, I believe I was sexually abused”). Reliability and validity of the CTQ, including its stability over time, convergent and discriminant validity with structured trauma interviews, and corroboration using independent data has been documented.
Bernstein and Fink’s original publication about the CTQ-28: Bernstein DP, Fink L.Childhood Trauma Questionnaire.San Antonio, TX: Psychological Corporation; 1998.
The questionnaire can be found online here: https://www.carepatron.com/files/childhood-trauma-questionnaire.pdf