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When the robust statistics and classical statistical method are unable to make objective evaluations respectively, this method could mildly remove outliers and avoid the extreme evaluation of "all satisfied"or "all dissatisfied", which truly reflected the real ability of each participant and could be applied to the proficiency testing activity with low number of participants. A quantitative microbiological risk assessment was conducted for Salmonella spp. in fresh pork from retail stores to consumers in China in order to provide evidence for adopting effect