Dissociative Experiences Scale-II (DES-II)
Psychology: Mental HealthReliability: alpha 0.933 sample items
About this scale
A 28-item measure of dissociative experiences including amnesia, depersonalization, derealization, absorption, and identity disturbance.
Sample item(s)
“Some people sometimes have the experience of driving or riding in a car or bus and suddenly realizing that they don't remember what has happened during all or part of the trip”
“Some people have the experience of looking in a mirror and not recognizing themselves”
“Some people sometimes find that they hear voices inside their head that tell them to do things or comment on things that they are doing”
Reliability
Reported internal consistency: alpha 0.93. As a rule of thumb, Cronbach’s α ≥ .70 is considered acceptable, ≥ .80 good, and ≥ .90 excellent for established measures.
Notes
Foundational dissociation measure.
Source & citation
Bernstein, E. M., & Putnam, F. W. (1986): Development, reliability, and validity of a dissociation scale. Journal of Nervous and Mental Disease, Vol. 174, No. 12, pp. 727–735.
Source. Scale details are summarised from the publication cited above. Always consult the original source for the full item set, scoring, and permission to use.
Use it in your research
Need to check the reliability or psychometrics of this scale in your own data? Use the free DrAIStudio research tools:
Cronbach’s alpha calculator
All statistical calculators
Search the full Scale Atlas
Academic writing humanizer