The comparative effectiveness of Core versus Core+Enhanced implementation strategies in a randomized controlled trial to improve substance use treatment receipt among justice-involved youth

Table 4 The Type III Fixed Effects of Multilevel Analysis of Cascade Penetration for H4-H5

	Multilevel analysis with covariates for H4^a		Multilevel analysis with covariates for H5^b
	df	F-test (p)	df	F-test (p)
Sitepairs	9,10	0.82 (.61)	9,9	0.75 (.66)
Core+Enhanced Condition (C) ^c	NA	NA	1,7969	0.00 (.96)
Study Phase (SP)	4,7973	11.77 (< .0001)	4,7969	11.40 (<.0001)
C x SP	NA	NA	4,7969	2.88 (.02)
Male	1,7973	1.62 (0.20)	1,7969	1.73 (.19)
White	1,7973	21.69 (< .0001)	1,7969	21.74 (< .0001)
Probation	1,7973	235.51 (< .0001)	1,7969	234.99 (< .0001)
Positive Urine	1,7973	52.07 (< .0001)	1,7969	51.11 (< .0001)
Maximum Charge Level	1,7973	0.35 (.55)	1,7969	0.40 (.53)
% Urbanicity	1,7973	1.24 (.27)	1,7969	1.08 (.30)

Note. Probation = Whether or not being on probation. Positive Urine = Whether or not having a positive urine screen. Charges = Number of charges. % Urbanicity = Percentage of residents in urban areas. Bold if p < .05
^a site variance (0.16 (0.07), Z = 2.04, p = 0.02); residual variance = 0.91 (0.01) (Z = 63.14, p < 0.0001); model χ²(1) = 543.12, p < 0.0001)
^b site variance (0.18 (0.09), Z = 1.93, p = 0.03), residual variance =0.91 (.01), Z = 63.13, p < 0.0001. model χ²(1) = 407.83, p < 0.0001
^c Core condition = 0, Core + Enhanced Condition = 1
H4: SP Effect size = .024; H5: CxSP Effect size = .022

ISSN: 1472-6963