This study investigated the effectiveness of the Hand Test in discrimi
nating the differential symptomatology of posttraumatic stress (PTS) i
n Vietnam combat veterans (VCVs). Participants were 108 VCV outpatient
s, 85 of whom met the Diagnostic and Statistical Manual of Mental Diso
rders (4th ed. [DSM-IV]; American Psychiatric Association, 1994) crite
ria for posttraumatic stress disorder (PTSD), and 23 patients that wer
e found to meet some, but not the minimum criteria, required for a dia
gnosis of PTSD by the DSM-IV. The latter group of patients was classif
ied into a subclinical PTSD, posttraumatic stress symptoms (PTSS) grou
p. Results showed higher levels of overall psychopathology, a vulnerab
le capacity for coping, and a tendency for feelings of inadequacy and
inferiority in the PTSD group. The PTSD group also exhibited more limi
ted interaction with the world around them than the PTSS group, which
may be indicative of withdrawal, apathy, or a lack of concern with env
ironmental activities and goals. These findings are discussed in relat
ion to the assessment, understanding, and treatment of PTS symptomatol
ogy and PTSD.