10.1371/journal.pone.0191883.g005 Steven M. Thurman Steven M. Thurman Nick Wasylyshyn Nick Wasylyshyn Heather Roy Heather Roy Gregory Lieberman Gregory Lieberman Javier O. Garcia Javier O. Garcia Alex Asturias Alex Asturias Gold N. Okafor Gold N. Okafor James C. Elliott James C. Elliott Barry Giesbrecht Barry Giesbrecht Scott T. Grafton Scott T. Grafton Sara C. Mednick Sara C. Mednick Jean M. Vettel Jean M. Vettel Narrowing of difference distribution and outlier reduction for combined estimates. Public Library of Science 2018 non-parametric Bland-Altman analysis log BIS wrist actigraphy onset latency compliance 2018-01-29 18:37:44 Figure https://plos.figshare.com/articles/figure/Narrowing_of_difference_distribution_and_outlier_reduction_for_combined_estimates_/5833299 <p>Bivariate scatter plots for (a) sleep onset time, and (b) sleep offset time, showing actigraphy measurements (red) and combined estimates (green) with reference to sorted daily sleep log measurements (blue) across the entire data set. The difference distributions (right) are much sharper for combined estimates, with corresponding increase in agreement (e.g. a higher percentage of differences contained within ±1.0 hour).</p>