Fig. 2From: Item response theory analysis and properties of decisional conflict scales: findings from two multi-site trials of men with localized prostate cancerItem information functions and test information functions for the DCS-12, aggregated DCS-12, and LL DCS-10. Information (y-axis) represents the precision with which a respondent’s latent trait value (x-axis) can be estimated. Higher information indicates greater precision. In this analysis, decisional conflict is the latent trait being measuredBack to article page