Question

Using the provided scenario, what is the sampling method, sample size, population size? Abstract 1 A survey on campus culture and alcohol use was voluntarily completed by 1,864 from the freshman class of 5,672 in their first semester of enrollment at a large public Midwest university. The original e-mail invitation to participate in the survey was issued to students known by their birth date to be at least 18 years old at the time. Twenty four percent of these students agreed that students can do nothing about alcohol abuse as part of campus culture, as opposed to 46% disagreeing with this statement and 24% standing neutral on the question. As compared to the students believing nothing can be done, students in the “alcohol culture can be changed” group drank less and reported higher levels of self-efficacy in their own use of alcohol. The students asserting “change in alcohol culture is not possible” agreed that the university had a reputation as a party school and reported more tolerance of intoxicated behavior. The contrasting profiles of these two groups of students suggest that there is a broader view of alcohol use, student responsibility, and definitions of culture than is sometimes recognized. Implications for campus-sponsored educational programming are discussed in terms of adolescent development and social networking.

Answer 1

In the given scenario sample size is 1864 students and population size is 5672 students. In my opinion the sampling method used in the given scenario is judgement or purposive sampling which is a type of non-probability sampling.

In judgement sampling the surveyor decides which particular population members to include in the sample as in this scenario only those students were sent invitation who were 18-year-old at that time.