Sample Quiz

In a state school of a hundred students, Grecia Malau, an ELT researcher from South Jakarta, might select twenty members based on a set of twenty randomly generated numbers between one and a hundred. What sample is this?

Dina intends to conduct a study investigating the language use of a certain area. She would divide the population into mutually subgroups as a means of making sure that all of the subgroups of the population are proportionately represented. What sample is this?

You are studying changes over time in romantic relationships. You are relatively new to the city, so you are finding it difficult to find participants yourself. You first look for interviewees within your own circle of friends and acquaintances. After the first interview with a couple from your own circle, you ask them if they know of another couple who may be interested in taking part in the research. Once you have interviewed the second couple, you ask again for a referral. What sample is this?

Andhini is currently investigating the prevalence of mental health disorders among high school students in a particular state. Randomly selecting 200 high schools from a list of all high schools in the state. Randomly selecting 10 students from each selected high school to participate in the study. What sample is this?

Bintang is investigating the attitudes of customers towards a particular brand of electronics in a large electronics store. Randomly selecting a starting point and selecting every 10th customer who enters the store to participate in the study. What kinds of sample is it?

To accomplish his study, Lintang is discovering the relationship between income and spending patterns among consumers. He is dividing the population into three income categories (low, middle, and high) and randomly selecting 100 participants from each category to participate in the study.

Syaiful is investigating the prevalence of a particular disease in a rural area and considering the area into different clusters such as villages and/or neighborhoods to easily obtain the data.