How can I ensure high quality survey responses?


All responses on Conjoint.ly are checked for signs of fraudulent or inattentive behaviour. Respondents are automatically marked as low quality if the following signs are present:

  • Short length of time spent on the full survey (e.g. 20 seconds),
  • Short length of time spent on each conjoint choice set (e.g. 1 second),
  • If a mouse is present on the device, but we do not detect movement of the mouse,
  • If scrolling is required to read the full question, but no scrolling occurs,
  • If certain unlikely answers are provided in open-ended questions.

During your experiment’s setup, there are several options available to help filter out low-quality respondents: Click the Advanced Settings tab and expand the Response quality management and Response quality warnings modules for more options.

Here are some settings that you can enable to improve the quality of your responses:

  • Sloppy text check - Filter inattentive respondents such as low character count / gibberish characters detected)
  • Disable respondents from the same IP address/cookie - prevent duplicated / fraudulent responses
  • Warning message to redo / get terminated - prevent respondents from answering randomly (enabled by default)
  • Force respondents to stay for a certain duration - to ensure that respondents pay attention and properly consider the question and choices
Additional response quality options in Advanced Settings

You can also specify a separate redirect for low-quality respondents:

  • Open the Redirects upon survey completion module under the Advanced settings tab.
  • Insert the re-direct URL in the URL for low quality responses field.
  • Click the Save changes button at the bottom of your screen.
Redirecting low-quality responses in Advanced Settings