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Table 2 Total treatment balance: mean and variance (n = 264, simulations = 1000)

From: Randomization in substance abuse clinical trials

RANDOMIZATION PROCEDURE

TREATMENT

E(NT(n)/n)

VAR(NT(n)/n)

COMPLETE

1

0.3323

0.0013

 

2

0.3345

 
 

3

0.3332

 

URN

1

0.3311

0.0007

 

2

0.3344

 
 

3

0.3345

 

COVARIATE ADAPTIVE (2 COVARIATES)

1

0.3345

0.0001

 

2

0.3352

 
 

3

0.3305

 

COVARIATE ADAPTIVE (5 COVARIATES)

1

0.3351

0.0001

 

2

0.3337

 
 

3

0.3312

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