For the surveys in 1997 and 1998 we used a random stratified design, whereas in 2000 and 2001 we conducted surveys using a regular grid.
The disadvantages of conducting surveys using mobiles include the potential increased call costs, particularly for longer surveys, and the inability to limit mobile calls to particular geographic regions within Australia.
The researchers conducted six surveys, using the online Mechanical Turk public-opinion tool, between June 2015 and November 2015.
To map the minefields, Mr. Willoughby said, the Halo Trust teams conducted topographical surveys using equipment that measured standard latitude and longitude measurements.
Interviews were carried out by trained interviewers from the Australian Bureau of Statistics, a statutory body responsible for conducting such surveys using ethical protocols that include written informed consent.
From October 2008-January 2009, community-based organizations conducted household surveys using three-stage cluster sampling in Shan, Kayin, Bago, Kayah, Mon and Tanintharyi areas of Myanmar.
We conducted ground-based surveys using binoculars and, occasionally, resorting to portable ladders to confirm the identification.
She said members were discussing ways to conduct the survey using the Internet but had not yet decided whether to abandon the current system.
We therefore decided to conduct a survey using mailed questionnaires.
At the time, Tough Guy had about a hundred obstacles, and Dean conducted a survey, using Wilson's contact list, to find out which ones were most popular.
