Table 4.

Interrater Agreement on the Round 3 Scores Given by Each Stakeholder Group in Each e-Delphi Survey (K = Weighted Kappa Statistic; Fleiss, 1971).

e-Delphi survey	Stakeholder group	K	95% Confidence interval
			Lower	Upper
Sound-based interventions	Health-care users	0.23*	0.17	0.28
	Health-care practitioners	0.42**	0.34	0.51
	Clinical researchers	0.38*	0.30	0.47
	Commercial representatives and funders	0.34*	0.26	0.42
Psychology-based interventions	Health-care users	0.24*	0.18	0.31
	Health-care practitioners	0.46**	0.38	0.54
	Clinical researchers	0.35*	0.28	0.42
Pharmacology-based interventions	Health-care users	0.16	0.10	0.22
	Health-care practitioners	0.32*	0.26	0.39
	Clinical researchers	0.17	0.11	0.22
	Commercial representatives and funders	0.53**	0.44	0.62

Note. *Fair agreement (K = 0.21–0.40) and **Moderate agreement (K = 0.41–0.60).