Since respondents filled out the questionnaire voluntarily, their self-selection calls into question the credibility and validity of the statistics, but the figures are still of qualitative interest. This is especially true for Internet users 'responses to questions on condom usage and making friends on the Internet, which may be cause for concern.
由於網路的問卷調查，由使用者主動填寫，在量化統計的信度與效度上常會受到質疑，但仍有質化的參考價值。尤其在保險套使用習慣及網路使用者的網路交友上，所反應的趨勢也頗令人深思。