Stage 3 Stage 4 Scale, Domain, and Sub-Domain Internal Consistency (Cronbach α) Test-Retest (Pearson r) Internal Consistency (Cronbach α) Test-Retest (Pearson r) Scale 0.955 0.782 0.948 0.793 Psychological Symptoms 0.932 0.700 0.927 0.767 Internal 0.917   0.913   Interpersonal 0.775   0.762   Physical Activities 0.931 0.881 0.916 0.757 Basic 0.907   0.896   Advanced 0.872   0.897   General Symptoms 0.873 0.738 0.813 0.660 Physical/ Neuropsychological Symptoms 0.818   0.819   Sleep 0.817   0.438   Bowel Symptoms 0.932 0.742 0.920 0.814 Lower 0.933   0.923   Upper 0.634   0.463   Appetite Symptoms 0.896 0.719 0.898 0.790 Pleasure 0.802   0.797   Digestion 0.799   0.812

Table 3: Internal Consistency and Test-Retest Reliability Coefficients.