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Figure 4 | BMC Medical Research Methodology

Figure 4

From: Optimizing cost-efficiency in mean exposure assessment - cost functions reconsidered

Figure 4

Numerical procedure for determining the optimal exposure assessment strategy in case D (α≠1, β≠1). For increasing values of n s as indicated inside the open symbols in each curve, the maximal number of measurement occasions, i.e. n d,maxns , allowed by a budget of 500 (arbitrary units) is identified, as marked by open symbols. The resulting statistical performance, i.e. s 2 μ (n s , n d,maxns ), is shown above each curve. In the illustrated case, (n s , n d ) = (5, 12) was the optimal allocation.The illustration refers to a scenario with (s 2 BS , s 2 BD , s 2 μWD ) = (2, 10, 10), (π s , π d , c q ) = (20, 1, 1), and (α, β) = (1.50, 1.50).

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