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Table 2 PedsQL™ 4.0 Generic Core Scales Internal Consistency Reliability for Child Self-Report and Parent Proxy-Report for ADHD Sample by Age and Summary Score/Subscale

From: The PedsQL™ as a patient-reported outcome in children and adolescents with Attention-Deficit/Hyperactivity Disorder: a population-based study

Scale Age Group
  Young Child 5–7 Child 8–12 Adolescent 13–18 Total Sample
Child Self-Report (n = 13) (n = 37) (n = 22) (n = 72)
Total Score 0.86 0.93 0.94 0.92
Physical Functioning 0.63 0.84 0.89 0.83
Psychosocial Health 0.86 0.91 0.92 0.90
Emotional Functioning 0.83 0.89 0.85 0.87
Social Functioning 0.85 0.89 0.90 0.88
School Functioning 0.52 0.70 0.82 0.74
Parent Proxy-Report (n = 13) (n = 35) (n = 21) (n = 69)
Total Score 0.80 0.92 0.94 0.92
Physical Functioning 0.61 0.87 0.78 0.81
Psychosocial Health 0.83 0.89 0.95 0.90
Emotional Functioning 0.79 0.85 0.85 0.84
Social Functioning 0.78 0.90 0.91 0.88
School Functioning 0.54 0.70 0.88 0.76