Fig. 6
From: Modeling observations with a detection limit using a truncated normal distribution with censoring
Average Bias for δ from Six Different Estimation Methods in Two Population Model. The vertical dashed black line corresponds to the case when δ=0, i.e., μ1=μ2. GS = Gold Standard, i.e., uncensored observations with truncation adjustment; Uncens NT = Uncensored data with no truncation adjustment; DL = detection limit; Tobit = Tobit censored regression with no truncation adjustment; tcensReg = Censored regression with truncation adjustment