Table 3.

Test and Retest Scores, Measurement Error, and Intraclass Correlation Coefficient (ICC)^a

↵^a SEM=standard error of measurement, MDC_ind=minimal detectable change at the individual level, MDC_group=minimal detectable change at the group level, CI=confidence interval.
^b The Fear-Avoidance Beliefs Questionnaire and the Pain Catastrophizing Scale also are presented as rescaled scores to allow comparisons of test-retest reliability results.
^c 8-Item SF-36=8-item version of the Medical Outcomes Study 36-Item Short-Form Health Survey questionnaire, role–physical=role of physical health problems in work or other daily activities, role–emotional=role of emotional problems in work or other daily activities. Higher scores indicate better health.