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Table 2 Participant characteristics comparing group completers with non-completers at Time 1

From: A multi-site controlled trial of a cognitive skills program for mentally disordered offenders

  Group completers N M (SD) Non-completers N M (SD) χ 2 (df = 1)
Security Level 52 Medium = 33 Low = 19 15 Medium = 9 Low = 6 .06
      t-value
Mean Age 52 34.88 (8.77) Range = 20-62 15 31.60 (7.35) Range = 19-46 1.32
Mean number of previous admissions ~ 41 3.78 (3.56) Range = 0-13 12 5.42 (4.34) Range = 0-12 −1.33
Mean number of previous convictions ~ 46 6.95 (14.72) Range = 0-93 11 8.31 (9.16) Range = 0-30 −0.31
PMI Total Score 52 11.42 (3.14) 15 10.53 (3.89) 0.92
MVQ Total Score 52 16.46 (12.66) 15 15.53 (12.86) 0.25
SPSI-RS Total Score 52 11.30 (2.91) 15 13.09 (2.62) −2.14*
NAS-PI Total Score 52 82.81 (21.27) 15 81.13 (18.25) 0.28
LoC Score 52 16.77 (5.42) 15 13.93 (4.43) 1.85
DBSP Total Score 52 37.48 (10.13) 15 40.40 (10.08) −1.10
  1. ~ = Data was not available from records for all participants.
  2. * p < .05.