Potential bias? Refer to the previous two exercises. Registered dietitians were trained to administer the survey. Elite athletes were then recruited from participants of group workshops or one-on-one counseling sessions conducted by one of these trained dietitians. The surveys were distributed and completed prior to the beginning of the workshop or session.
It was assumed that an athlete's completion of the survey signified his or her consent to be in the study. Write a brief paragraph that discusses possible selection and response biases that could arise based on this data collection process.