The statistical properties of this new design is evaluated with the Euclidean distance between the observed treatment distribution and the desired treatment distribution as the treatment imbalance measure; and the Euclidean distance between the conditional allocation probability and the target allocation probability as the allocation predictability measure.
We account for potential endogeneity of these processing times by exploiting the conditional random allocation of shipments to different verification channels associated with the use of risk-based control procedures.
DRC government allocated US$994,000 from the national budget toward the procurement of contraceptives, with subsequent allocations conditional on receipt of initial order.
We obtain the conditional and unconditional allocation probabilities and the standard error of the estimated treatment difference at each stage.
For the profile sub-model, conditional upon the allocation Z i, we assume independence between covariates, such that X i, j | Z i = c ∼ Multinomial (1, ϕ Z i, j ), where ϕ c, j = (ϕ c, j, 1, ϕ c, j, 2, …, ϕ c, j, L j ) is the vector of probabilities associated with cluster c for each of the L j possible categories that could be observed for covariate j.
Since we do not know exactly which component a given site belongs to, the likelihood for one site is the weighted sum of likelihoods conditional on each possible allocation of the site to the available components.
For each additional block the balance measure is conditional on the selected allocation of the first block, where w ij is the within block z-scores and the balance measure becomes: (2) A d d i t i o n a l B l o c k B a l a n c e = ∑ j = 1 M z j k 2, since z j k = ∑ i = n 1 + 1 n 2 (x i k w i j ) | ∑ i = 1 n 1 (x i k w i j ), where: n2 is the number of units allocated to the additional block.
This approach offers the scope for an intricate description of D's behavior, based on the conditional probabilities associated with the allocation of its data to high or low concentration bins which, in turn, depends on the state of A, B and C. The conditional probability tables for each node represent relative (rather than absolute) concentrations.
(The conditional is a condition.
The allocations for block two was conditional on block one has been included as 'block_one_allocation.csv'.
