Lightpost's psychology assessment tools are designed based on psychology theory. Mainy using the DSM-5 diagnostic criterias for reference (American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). Arlington, VA: American Psychiatric Publishing.)
The depression assessment tool uses a widely recognized depresssion tool designed by the Thailand department of Mental Health which can be found in the following link: https://dmh.go.th/test/download/files/2Q 9Q 8Q (1).pdf
Other references include:
American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). Arlington, VA: American Psychiatric Publishing.
Bryant, R.A., Friedman, M.J., Spiegal, D., Ursano, R. & Strain, J. (2011) A review of acute stress disorder in DSM-5 Depression and Anxiety. 28 (9): 802-817
Foa, E.B. (2009) Effective treatments for PTSD : practice guidelines from the International Society for Traumatic Stress Studies. New York : Guilford Press.
Simpson, J. & Moriarty, G.L. (2013).Multimodal Treatment of Acute Psychiatric Illness : A Guide for Hospital Diversion. New York : Columbia University Press.
Walser, R.D. & Westrup, D. (2007). Acceptance & commitment therapy for the treatment of post-traumatic stress disorder & trauma-related problems : a practitioner's guide to using mindfulness & acceptance strategies. Oakland, Calif. : New Harbinger Publications.
"Highlights of Changes from DSM-IV-TR to DSM-5". American Psychiatric Association. May 17, 2013. American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders (DSM-5), Fifth edition. 2013.