Table 8 Two-way mixed effect model (absolute agreement, single measure) Intraclass Correlations (ICC) between Child Self-Report and Parent Proxy-Report for PedsQL™ 4.0 Generic Core Scales by Age for Chronic Health Condition Sample

5 yrs

151

0.50*

0.46*

0.47*

0.48*

0.35*

0.32*

6 yrs

159

0.37*

0.34*

0.38*

0.43*

0.30*

0.41*

7 yrs

181

0.51*

0.50*

0.48*

0.37*

0.46*

0.33*

8 yrs

251

0.55*

0.52*

0.51*

0.45*

0.45*

0.44*

9 yrs

229

0.54*

0.55*

0.49*

0.45*

0.41*

0.48*

10 yrs

254

0.64*

0.65*

0.60*

0.49*

0.57*

0.59*

11 yrs

241

0.63*

0.64*

0.58*

0.50*

0.57*

0.56*

12 yrs

214

0.61*

0.60*

0.59*

0.54*

0.56*

0.58*

13 yrs

255

0.68*

0.63*

0.64*

0.62*

0.53*

0.60*

14 yrs

230

0.70*

0.69*

0.66*

0.58*

0.61*

0.60*

15 yrs

221

0.63*

0.65*

0.58*

0.56*

0.55*

0.49*

16 yrs

170

0.61*

0.61*

0.57*

0.54*

0.47*

0.58*