Among 70 remaining risky drinkers, 57 participants voluntarily participated but only 47 participants completed the follow-up process and are included in these analyses.
All participants were recruited and voluntarily participated in the study.
Participants were 355 women who voluntarily participated in a research study during 2005 through 2007 designed to prevent AEPs.
First, our participants were not probability samples because they voluntarily participated in systemic-health check-up services conducted by the town government.
Five biology teachers (Table 1) from several different school districts in the northeastern region of the US voluntarily participated in the PD and were paid for their participation.
The sample in this study consisted of university students who voluntarily participated in the survey, which may result in positive bias in participants (Groth-Marnat, 2003).
Ten healthy male participants, aged between 23 and 31 years (mean age = 26.3±2.1 years), voluntarily participated in the present experiment (informed consent was signed).
Altogether, 400 participants were selected for the study but only 388 (97%) of them voluntarily participated.
Yet they "voluntarily participated in a 2015 reinvestigation of Andrea Constand's allegations against Mr Cosby", the 29-page complaint continues.
Three police flew to Italy last week where Pell, Australia's most senior Catholic, "voluntarily participated in an interview", a police spokeswoman said on Wednesday.
and other tests, and she voluntarily participated in this and earlier studies, all of which showed her lacking in any sort of fear response until now.
