The fact that, in the Lowes Study and the Komen Study, there was one scale variable that was significantly different between the MTurk sample and the internet sample is not necessarily an indictment against MTurk samples, but rather an indication of potential limitations existing with any convenience sample
In my teaching I have been known to say that a convenience sample
is only "convenient for the investigator".
A cross-sectional convenience sample
of 27 homeless military veterans at a local shelter completed face-to-face structured survey interviews.
A convenience sample
of 103 patients with nasogastric tubes taped with pink tape, clear tape, and a butterfly showed superior securement of 100 hours with the pink tape.
Tsoukas presented a retrospective study of a convenience sample
of 38 consecutive patients with a primary diagnosis of fibromyalgia attending a multidisciplinary tertiary care pain center where physicians obtained routine blood tests.
In a convenience sample
of 106 of the 176 facility residents, 12 (11%) had a positive result, as did three from a convenience sample
of 26 of the 238 staff members.
Although the sample studied was a small convenience sample
, the authors determined that the findings of a high probability of substance dependence indicated the need for additional research with a larger sample.
The small size of villages on the Manu'a Islands meant that spatial sampling was not possible; thus, a convenience sample
of volunteers was recruited.
The authors recruited a convenience sample
of 62 children (30 with single parents, and 32 children with married parents) between six and nine years old.
If no one else has, the hypothesis is usually tested using a convenience sample
. Convenience samples
are used because of limited resources and access to a representative sample is limited and expensive.
590) measured eight PFCs in 300 serum samples collected in 2009 from a convenience sample
of Dallas, Texas, children (157 girls and 143 boys) < 13 years of age and examined age and sex differences in PFC concentrations.