We wish we had done more of this because it helped us to clarify the wording of questions and assess the time required to complete the whole survey. (sciencemag.org)
The new maps are also of higher quality, as some areas were re-observed to obtain a more uniform data quality over the whole survey area. (astrobio.net)
Many Q's are just multiple choice Q's to click, so the whole survey should take no more than 5 minutes. (cominguprosestheblog.com)