Measuring mass political preferences and assessing quality of representation often depends on the measurement of individual preferences and making credible interpersonal comparisons. Using non-parametric methods with and without anchoring objects, I have demonstrated improvements in measuring political ideology and voting behavior, conceptions of citizenship and immigration policy positions, and self-perceived political efficacy. My non-parametric scaling of ideology better predicts voting than the raw score or alternative measures, and can be seen as a non-parametric version of the Aldrich-McKelvey scaling results.