Graduation is, after all, an optional ceremony, and it is more worrying that students can be priced out of completing their courses.
To our knowledge, neither serious risks nor undesired effects can arise out of completing the questionnaires.
One instructor chose to opt her participants out of completing questionnaires after baseline but continued providing attendance records.
The letter included information indicating that the respondent could opt out of completing the survey, and providing procedures for requesting to be dropped from the study.
At least one of the four questionnaires was returned by 99.6% (689 out of 692) of the subjects, and 71.4% (494 out of 692) completed all four questionnaires.
A total of 200 out of 202 completed questionnaires were used to analyze the HRQoL.
A total of 35 candidates (out of 38) completed the survey.
A total of 45 patients (out of 55) completed all follow-up visits and were evaluable for the present analysis.
Not all students could be reached: 875 out of 972 completed the questionnaire giving an overall response rate of 90%.
In almost every case (29 out of 33) completed by W.T.O.
