Table 3. Inter-rater agreement for SDQ scores by gender and school grade.
| SDQ scales | Self-report vs. caregiver-report ICC (95% CI) | Self-report vs. teacher-report ICC (95% CI) | Self-report vs. caregiver-report ICC (95% CI) | Self-report vs. teacher-report ICC (95% CI) | |||||||||
| Boys (n=4,664) | Girls (n=4,170) | Boys (n=875) | Girls (n=781) | Primary (n=2,907) | Junior high (n=3,045) | Senior high (n=2,881) | Primary (n=317) | Junior high (n=934) | Senior high (n=405) | ||||
| Note: Results of ICC are calculated using absolute agreement, two-way random-effects model. Interpretations of ICC values: values <0.20=poor agreement, values between 0.20 and 0.40=fair agreement, values between 0.40 and 0.60=moderate agreement, values between 0.60 and 0.80=strong agreement, values between 0.80 and 1.00=very strong agreement. Abbreviation: ICC=intraclass correlation coefficients; 95% CI=95% confidence interval; SDQ=the strengths and difficulties questionnaire. | |||||||||||||
| Emotional symptoms | 0.202 (0.155, 0.246) |
0.294 (0.250, 0.335) |
−0.002 (−0.144, 0.123) |
0.068 (−0.073, 0.19) |
0.103 (0.036, 0.166) |
0.352 (0.305, 0.397) |
0.234 (0.176, 0.288) |
0.023 (−0.218, 0.217) |
0.074 (−0.053, 0.185) |
−0.029 (−0.252, 0.153) |
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| Conduct problems | 0.253 (0.209, 0.295) |
0.234 (0.186, 0.279) |
−0.062 (−0.213, 0.070) |
−0.080 (−0.243, 0.062) |
0.209 (0.150, 0.265) |
0.293 (0.241, 0.342) |
0.212 (0.152, 0.267) |
0.080 (−0.148, 0.262) |
0.059 (−0.070, 0.172) |
−0.085 (−0.320, 0.107) |
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| Hyperactivity | 0.252 (0.208, 0.294) |
0.293 (0.249, 0.335) |
0.010 (−0.130, 0.133) |
0.063 (−0.078, 0.186) |
0.296 (0.243, 0.345) |
0.260 (0.206, 0.311) |
0.308 (0.255, 0.356) |
0.106 (−0.115, 0.283) |
0.019 (−0.115, 0.138) |
−0.014 (−0.233, 0.166) |
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| Peer problems | 0.323 (0.283, 0.361) |
0.331 (0.289, 0.370) |
0.024 (−0.115, 0.145) |
0.062 (−0.08, 0.185) |
0.305 (0.253, 0.354) |
0.326 (0.277, 0.373) |
0.340 (0.291, 0.387) |
0.112 (−0.108, 0.288) |
0.096 (−0.028, 0.205) |
0.024 (−0.186, 0.197) |
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| Prosocial behavior | 0.180 (0.131, 0.226) |
0.283 (0.238, 0.325) |
0.083 (−0.047, 0.197) |
0.101 (−0.035, 0.218) |
0.297 (0.243, 0.346) |
0.338 (0.289, 0.384) |
0.224 (0.165, 0.278) |
0.193 (−0.006, 0.353) |
0.119 (−0.001, 0.225) |
0.061 (−0.141, 0.228) |
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| Total difficulties | 0.318 (0.278, 0.356) |
0.379 (0.340, 0.416) |
0.000 (−0.142, 0.124) |
−0.039 (−0.196, 0.097) |
0.307 (0.255, 0.355) |
0.269 (0.215, 0.319) |
0.331 (0.280, 0.378) |
0.129 (−0.086, 0.302) |
−0.040 (−0.182, 0.085) |
0.011 (−0.202, 0.187) |
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