Fig. 1From: How to assess intra- and inter-observer agreement with quantitative PET using variance component analysis: a proposal for standardisationAccuracy and precision in terms of systematic and random variation, respectively, around the expected value. With kind permission from Springer Science + Business Media: Statistics for Non-Statisticians, Chapter 6: Error Sources and Planning, 2011, p.96, Birger Stjernholm-Madsen, Fig. 6.1.Back to article page