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Note: The score difference between PROMIS PF and converted PROMIS PF scores at Y axis, and the average of original and converted scores at X axis. Both metrics use a t-score. The solid line is the mean score difference between converted and observed scores, the dash lines are the upper and lower limits of agreement (LOA) (mean score difference +/−1.96 standard deviations (−10.7~10.67)). The size of the circle represents the sample size at that score point
