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Table 3 Intercorrelations between PedsQL™ 4.0 Generic Core Scales Child Self-Report and Parent Proxy-Report for ADHD Sample

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

PedsQL™ Scale Score Intercorrelations
Total Scale Score 0.71***
0.70***
Physical Functioning 0.67***
0.67***
Psychosocial Health 0.69***
0.69***
Emotional Functioning 0.67***
0.66***
Social Functioning 0.75***
0.75***
School Functioning 0.59***
0.59***
  1. ***p < .001.
  2. Effect sizes are designated as small (.10), medium (.30), and large (.50) for Pearson Product Moment correlations.
  3. Intraclass correlations (ICC) are designated as ≤0.40 poor to fair agreement, 0.41–0.60 moderate agreement, 0.61–0.80 good agreement, and 0.81–1.00 excellent agreement. Single Measure Intraclass Correlation Coefficients (ICC) are listed in italics below Pearson Product Moment correlation values. ICC values were derived using a single measure model.