Table 3.

Linear regression analyses for baseline EF variables and continuous outcome variables

	B (unstandardized)	ΔR2	Sig.		B (unstandardized)	ΔR2	Sig.
WIAT Math
Step 1: IQ	0.73	0.45	0.000**	Step 1: Group	−12.37	0.19	0.000**
Step 2: ROCF EPS	−10.53	0.01	0.032*	Step 2: ROCF EPS	−18.07	0.04	0.002**
Step 1: IQ	0.73	0.44	0.000**	Step 1: Group	−12.17	0.17	0.000**
Step 2: Digit Span (backward)	1.07	0.01	0.035*	Step 2: Digit Span (backward)	1.87	0.04	0.002**
WIAT Reading
Step 1: IQ	0.53	0.32	0.000**	Step 1: Group	−10.13	0.16	0.000**
Step 2: ROCF EPS	−5.34	0.01	0.244	Step 2: ROCF EPS	−8.69	0.01	0.092
Step 1: IQ	0.47	0.29	0.000**	Step 1: Group	−9.60	0.16	0.000**
Step 2: Digit Span	0.88	0.01	0.056	Step 2: Digit Span	1.28	0.03	0.009**
Columbia Impairment Scale
Step 1: IQ	−0.01	0.06	0.001**	Step 1: Group	0.90	0.28	0.000**
Step 2: ROCF EPS	0.76	0.02	0.034*	Step 2: ROCF EPS	0.24	0.00	0.437
NSSI/Suicide Attempts
Step 1: IQ	0.02	0.00	0.427	Step 1: Group	0.56	0.03	0.014*
Step 2: ROCF EPS	1.90	0.03	0.016*	Step 2: ROCF EPS	1.02	0.01	0.191
Step 1: IQ	0.01	0.01	0.300	Step 1: Group	0.71	0.03	0.017*
Step 2: CPT commissions	0.01	0.02	0.043*	Step 2: CPT commissions	−0.01	0.00	0.549
Suspensions/Expulsions
Step 1: IQ	0.01	0.00	0.660	Step 1: Group	0.23	0.04	0.008**
Step 2: ROCF EPS	1.09	0.05	0.001**	Step 2: ROCF EPS	0.74	0.02	0.027*
Step 1: IQ	0.00	0.00	0.455	Step 1: Group	0.28	0.03	0.012*
Step 2: CPT commissions	0.01	0.03	0.011*	Step 2: CPT commissions	0.01	0.03	0.014*

^*p<0.05.

^**p<0.01

IQ Intelligence Quotient; ROCF Rey-Osterrieth Complex Figure (EPS Error Proportion Score); CPT Continuous Performance Test; WIAT Wechsler Individual Achievement Test; NSSI Non-Suicidal Self-Injury