A comparison of data quality and practicality of online versus postal questionnaires in a sample of testicular cancer survivors
Smith AB et al. – These results demonstrate that online questionnaire completion can be offered in a cancer sample without compromising data quality. In fact, data quality from online questionnaires may be superior due to lower rates of participant nonresponse. Investigators should be aware of potential sampling bias created by more highly educated participants and managers/professionals choosing to complete online questionnaires.