Table 5.

Interrater agreement, percent versus Fleiss’ kappa (κ).

Criteria	Percent agreement (%)	Fleiss’ κ	Interpretation
Authority	92.59	.745	Substantial agreement
Complementarity	79.63	–.113	Poor agreement
Privacy	85.19	.614	Substantial agreement
Reference (attribution)	88.89	.756	Substantial agreement
Justifiability	74.07	.463	Moderate agreement
Contact details	95.37	.471	Moderate agreement
Financial disclosure	87.04	.716	Substantial agreement
Advertising policy	85.19	.691	Substantial agreement
Date (attribution)	79.63	.492	Moderate agreement