Answer:
convenience sampling can be very useful, and as the name suggests convenient. This can also lead to some problems though. If the group chosen is a group for a reason related to your research that could affect your findings. Given the example of students in a psych class, if your research is on physical activity levels in the student population, that could be totally fine to use as your sample because physical activity and psychology courses are not directly related. Conversely, if you were going to do research on intended major of first year college students, choosing just one course to pick from may skew your results (an overestimation of those interested in psych as a major)
Explanation:
