. Author manuscript; available in PMC: 2011 Dec 21.

Published in final edited form as: J Consult Clin Psychol. 2010 Dec;78(6):974–979. doi: 10.1037/a0020758

Table 2.

Means and Standard Deviations for Self-Reported PTSD Severity, Depression Severity, Early Alliance, and Social Support at Pretreatment

Self-report measure	M (SD)	Range
PTSD severity (PSS–SR)	33.93 (8.59)	11–51
Depression severity (BDI)	24.90 (9.80)	4–48
Average early alliance (WAI-C)	65.37 (12.59)	31–84
General social support (ISSB)	84.19 (29.59)	39–169
Positive trauma-related social support (SRQpos)	37.23 (15.84)	0–73
Negative trauma-related social support (SRQneg)	31.03 (18.45)	0–88

Note. PTSD = posttraumatic stress disorder; PSS–SR = PTSD Symptom Scale—Self-Report (n = 188); BDI = Beck Depression Inventory (n = 185); WAI-C = Working Alliance Inventory, mean of Sessions 2 and 4 (n = 153); ISSB = Inventory of Socially Supportive Behaviors (n = 181); SRQpos = Social Reactions Questionnaire, positive support scale (n = 183); SRQneg = Social Reactions Questionnaire, negative support scale (n = 183).