做網上問卷可唔可信？？

I am one of the member and tried many survey, however, none of them had complete. Because it always said the no. of target ppl group had been filled up, thanks for your participation.

done spend time on that

如果講公司的話，ACNielsen 同 Synovate 都比較大和可信，其他公司最好同人確認下先。

我想回應回答果邊，通常為了資料和社會情況相似，所以不一定見人就做，例如個社會有成女人個訪問就會有六成是女性。由於網上傳送資料快速，加上訪問有限額，所以做網上問卷才會較常遇到不能繼續的情況，而非有意欺詐或為難member。

至於為何要有限制可參考以下：
http://www.sawtoothsoftware.com/support/SSIWeb_Support/online_help/index.html?introductiontoquotacontrol.htm

OK喎, 我之前都做過幾次,
儲到d分, 換左張coupon!!

I've already redeemed 2 supermarket coupon; it is very depend on how fast you response to the survey as most of them would be filled up within 1-2 days...

吾好架...緊係吾可信...