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. Author manuscript; available in PMC: 2009 Jul 15.
Published in final edited form as: J Fam Psychol. 2009 Feb;23(1):89–102. doi: 10.1037/a0014352

Table 2.

Mixed-Effect Regression Models for Treatment Outcome Measures

Initial Status Rate of Change
Outcome Instrument Parameter Intercept (π0i) Condition × Intercept (β01) Linear (π1i) Condition × Linear (β11)
Dichotomous Models
  ASBI Deviant Sexual
  Interests youth-report		 β −0.71 −0.20 −0.62*** 0.51*
SE 0.34 0.39 0.16 0.26
df 122 122 359 359
OR 0.49 0.82 0.54 1.66
95% CI 0.25 – 0.96 0.38 – 1.78 0.39 – 0.73 1.00 – 2.75
  ASBI Sexual
  Risk/Misuse youth-report		 β −0.58 −0.11 −0.75*** 0.65*
SE 0.28 0.36 0.19 0.28
df 122 122 359 359
OR 0.56 0.90 0.47 1.92
95% CI 0.32 – 0.98 0.44 – 1.81 0.33 – 0.68 1.16 – 3.29
  ASBI Deviant Sexual
  Interests caregiver-report		 β 0.45 −0.38 −0.99*** 0.65*
SE 0.27 0.35 0.17 0.26
df 122 122 354 354
OR 1.56 0.68 0.37 1.92
95% CI .91 – 2.69 0.34 – 1.37 0.27 – 0.52 1.16 – 3.19
  ASBI Sexual
  Risk/Misuse caregiver-report		 β −1.75 −0.74 −1.02*** 1.02**
SE 0.33 0.42 0.24 0.31
df 122 122 356 356
OR 0.17 0.48 0.36 2.78
95% CI 0.09 – 0.33 0.21 – 1.10 0.23 – 0.58 1.51 – 5.13
  SRD Delinquent
  Behavior		 β 0.32 −0.82 −1.09*** 0.92**
SE 0.29 0.32 0.19 0.27
df 121 121 358 358
OR 1.38 0.44 0.34 2.50
95% CI 0.78 – 2.43 0.23 – 0.84 0.23 – 0.49 1.47 – 4.25
  PEI Substance
  Use Index		 β −1.49 −0.54 −0.70** 1.20***
SE 0.45 0.48 0.20 0.29
df 121 121 358 358
OR 0.22 0.58 0.50 3.33
95% CI 0.09 – 0.55 0.23 – 1.50 0.34 – 0.73 1.90 – 5.85
  Out-of-home
  placements		 β −6.83 0.15 −0.01 0.07***
SE 0.16 0.20 0.01 0.02
df 122 122 1155 1155
OR .001 1.16 0.99 1.07
95% CI .001 – .001 0.78 – 1.73 0.97 – 1.01 1.04 – 1.12
Continuous Models
  YSR Externalizing
  T-score		 β 44.41 0.79 −3.10** 2.49*
SE 1.81 1.88 0.87 1.08
df 121 121 333 333
  YSR Internalizing
  T-score		 β 45.05 0.72 −3.72*** 1.33
SE 1.66 1.94 0.95 1.22
df 121 121 125 125
  CBCL Externalizing
  T-score		 β 47.17 3.36 −3.79*** 0.76
SE 1.80 2.01 0.75 1.08
df 121 121 331 331
  CBCL Internalizing
  T-score		 β 50.57 2.41 −5.20*** 1.21
SE 1.71 2.10 0.71 1.18
df 121 121 331 331

Note. The T ratio test statistic for each parameter (omitted) was computed as βtij/SE; Condition was coded as 0 = MST, 1 = TAU-JSO. Youth age, gender, race (coded as 0 = white, 1 = non-white), and history of prior offenses (coded as 0 = no priors, 1 = one or more priors) were included as covariates in each model. ASBI = Adolescent Sexual Behavior Inventory; SRD = Self-Report Delinquency Scale; PEI = Personal Experiences Inventory; YSR = Youth Self-Report; CBCL = Child Behavior Checklist.

*

p < .05.

**

p < .01.

***

p <.001.