= Sensitivity analysis for unit and item nonresponse
{title2=$\theta=[n_R\widehat p_R+n_Ip_I+n_Up_U]/n$}
Vary the unobserved outcome probabilities for item and unit nonresponders, and any unknown auxiliary-variable mixture, over scientifically plausible ranges. Recompute the population estimate and identify values at which substantive conclusions change. This probes untestable transport or <missing at random> assumptions; it is distinct from sampling uncertainty represented by a <confidence interval>. Letting each missing-outcome probability vary from zero to one gives worst-case identification bounds.
Back to article page
