Background Prospective data collection is recommended for epidemiological studies and weekly (or every two weeks, or monthly) self-reported online questionnaires for athletes are frequently used.

Supervisors, team leaders, measurers and interviewers should receive different training, tailored to their roles in the data collection. One extra day of training on mobile technology is highly ...

One of the most commonly-used measurement tools in psychology research and practice is what’s called the patient-reported, or self-reported, test. This method involves giving a patient, client, or ...