Выражение встречается в следующем контексте: (руководство по заполнению анкеты).

You will be asked to select at least three people who know you well, to complete the survey on their perception of you. Try to have as many peers or colleagues respond as possible. They may complete the survey either online or offline on paper. Assure each of your selected respondents that their responses will be averaged with others and will remain anonymous.

Заранее большое спасибо.