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. Author manuscript; available in PMC: 2010 Dec 20.
Published in final edited form as: Cogn Behav Pract. 1998 SUMMER;5(1):103–122. doi: 10.1016/S1077-7229(98)80023-0

TABLE 3.

Descriptive Statistics, Ipsative Z Scores, Test-Retest Reliabilities (Rel), and Critical Difference (CD) Scores for Outcome Measures

Ipsative Z Scores

Measure M SD Z1 Z2 Z3 Z4 Z5 Z6 Z7 Z8 Rel CD
PTSD measures
  PSS-Total 23.4 16.8 1.58 .81 .69 .45 −.80 −.86 −.98 −.92 0.74 2.37
    (a) Reexp. 5.4 3.2 1.13 .50 1.13 .81 −1.06 −1.38 −.44 −.75 0.66 2.70
    (b) Avoid. 7.3 7.4 1.58 .91 .64 .36 −.85 −.85 −.99 −.85 0.56 3.08
    (c) Arousal 10.8 6.6 1.70 .79 .48 .33 −.58 −.58 −1.18 −1.03 0.71 2.50
RAST 113.3 94.9 .72 .44 −.70 −.94 0.85 1.27
General psychopathology
  PILL 17.9 6.9 3.49 3.64 3.49 1.90 0.79 1.50
  BDI 12.3 14.1 1.47 −.23 −.73 −.52 0.65 1.94

Note. Reexp. = Reexperiencing; Avoid. = avoidance; PSS = PTSD symptom scale; RAST = Rape Aftermath Symptom Test; PILL = Pennebaker Inventory of Limbic Languidness; BDI = Beck Depression Inventory. Mean and standard deviation for the PILL are based on the population sample.