|The self-assessment test is categorized into two parts, the first part consists of 16 questions related to experiences and events before the age of 18, and the second part consists of 12 statements related to behavior and emotional experiences. Based on 5 point Likert scale, for each statement, indicate your level of agreement.
Exposure to childhood trauma is often linked to the development of various mental health disorders such as depression, post-traumatic stress disorder, anxiety disorders, etc.  Terr LC. Childhood traumas: An outline and overview. Focus. 2003 Jul;1(3):322-34. One thing to remember is that everyone who might have experienced traumatic events in the period of childhood does not develop a mental health condition. Still, it may have somewhat impacted the individual’s physical, cognitive, behavioral, and emotional experiences.
Over the years, researchers have recognized the need to develop a modern and standardized scale that can accurately measure childhood traumatic events and their impact on individuals overall wellbeing.  Danese, A., 2020. Annual Research Review: Rethinking childhood trauma‐new research directions for measurement, study design and analytical strategies. Journal of child psychology and psychiatry, 61(3), pp.236-250. This recognition led to the development of DCTS-28. While there are some valid questionnaires and inventories available, these may be considered outdated by current standards; we can call them traditional scales. One of the popular traditional self-assessment scale is the Childhood Trauma Questionnaire (CTQ). It is a 70-item questionnaire developed by Bernstein in 1994, which tries to measure various subscales of childhood trauma.
DCTS-28 not only measures the different aspects of childhood trauma, such as Emotional abuse, physical abuse, emotional neglect, and behavioral impact, but it also tries to assess the current impact of the traumatic events on individuals’ mental health and well-being.
The purpose of developing the scale was to measure childhood trauma and its impact on psychological and overall well-being. In a study, 240 college students were asked to participate in the DCTS-28 scale, with 97 female students and 143 male students. The average student age was 21 to 25. The results of the scale were found to be accurate in measuring what it intended to measure. You can read the complete manuscript for information on validity, reliability, and internal consistencies.