Final answer:
The most likely survey method to cause nonresponse bias in a university survey on tuition increase for online degree programs is a self-selected survey, such as an internet survey, due to voluntary participation that may not be representative of all students.
Step-by-step explanation:
When a university wants to survey students about a potential tuition increase for online degree programs, the survey method most likely to lead to nonresponse bias is a self-selected survey, such as an internet survey. Nonresponse bias occurs when the individuals who choose to participate in the survey are significantly different from those who do not, leading to skewed results.
Internet surveys are particularly susceptible to this type of bias because the individuals who respond do so voluntarily, which may not represent the population as a whole. For example, students who are passionate about the issue or have had prior negative experiences with tuition increases might be more likely to respond than those with no strong opinions or awareness, thereby introducing bias into the survey's results.