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Table 3 PedsQL internal consistency and test- retest reliability

From: Reliability and validity of PedsQL for Portuguese children aged 5–7 and 8–12 years

PedsQL dimensions Children 5-7 Parents of children 5-7 Children 8-12 Parents of children 8-12
  a ICC* a ICC* a ICC* a ICC*
Total scale score 0.78 0.97 (0.88-0.99) 0.92 0.99 (0.95-0.99) 0.89 0.98 (0.95-0.99) 0.89 0.99 (0.97-0.99)
Physical functioning 0.73 0.95 (0.83-0.97) 0.86 0.97 (0.90-0.99) 0.84 0.98 (0.94-0.99) 0.86 0.99 (0.85-0.99)
Psychosocial health 0.60 0.94 (0.76-0.99) 0.88 0.98 (0.92-0.99) 0.83 0.95 (0.85-0.99) 0.82 0.99 (0.95-0.99)
Emotional functioning 0.41 0.83 (0.26-096) 0.74 0.98 (0.90-0.99) 0.74 0.95 (0.86-0.99) 0.79 0.90 (0.66-0.98)
Social functioning 0.36 0.80 (0.46-0.94) 0.80 0.98 (0.93-0.99) 0.71 0.93 (0.77-0.99) 0.75 0.92 (0.73-0.98)
School functioning 0.63 0.98 (0.91-0.99) 0.81 0.98 (0.91-0.99) 0.62 0.94 (0.80-0.98) 0.64 0.98 (0.91-0.99)
  1. *ICC - Intraclass correlation coefficient (lower bound-upper bound).