Reliability and validity of the AGREE instrument used by physical therapists in assessment of clinical practice guidelines

Table 4 Intraclass correlations for each AGREE instrument domain as a function of the number of raters

	Scope & Purpose		Stakeholder Involvement		Rigor of Development		Clarity & Presentation		Applicability		Editorial Independence
	Single Rater ICC	Average of Raters ICC	Single Rater ICC	Average of Raters ICC	Single Rater ICC	Average of Raters ICC	Single Rater ICC	Average of Raters ICC	Single Rater ICC	Average of Raters ICC	Single Rater ICC	Average of Raters ICC
2 Raters	0.37	0.54	0.71	0.83	0.81	0.89	0.41	0.58	0.65	0.79	0.60	0.75
3 Raters	0.38	0.64	0.71	0.88	0.82	0.93	0.54	0.78	0.66	0.85	0.38	0.65
4 Raters	0.41	0.73	0.64	0.88	0.77	0.93	0.51	0.80	0.54	0.82	0.35	0.69
5 Raters	0.42	0.78	0.69	0.92	0.79	0.95	0.51	0.84	0.57	0.87	0.38	0.76
6 Raters	0.40	0.80	0.67	0.93	0.79	0.96	0.55	0.88	0.51	0.86	0.35	0.76

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