In the second study, the mechanisms underlying pre-test explanations were examined using an online sample of 269 working adults.
The present study examined perceptions of beneficence and respect for persons in substance use research, including relative risk and desired monetary compensation, using an online sample of cocaine users.
Using an online sample size calculator (Raosoft), 14 we adopted a 0.05% margin of error which required a total of 306 participants to accurately (95% CI) represent a variable with 50% response distribution in a population of approximately 1500 patients with cancer seen annually.
The OTX study for MTV used an online sample of 4,213 people, and found that those responding engaged in 15.6 hours of leisure activity a day, which included nonmedia activities like shopping, socializing or eating.
The arterial input function was measured continuously using an online blood sampling device [20].
Although limitations exist, using an online questionnaire with a convenience sampling survey design provided an inexpensive, straight-forward, and relatively rapid means of collecting responses.
Earlier studies had shown promise, but had not examined the change in these variables in a non-clinical sample using an online mindfulness course based directly on MBSR and MBCT courses.
Although previous studies have found that an online mindfulness course can decrease anxiety and depressive symptoms, so far no research has examined the change in a non-clinical sample using an online mindfulness course based directly on MBSR and MBCT courses.
The survey was conducted using an online access panel, providing a representative sample of employees.
Due to the Praeventis sample's limited response to the first invitation letter, we decided to recruit an extra sample by using an online panel of a private marketing research company.
