Sampling Methods in Research

An Edtech company wants to understand online class preferences among youth aged 19-30 in Indonesia. The population is stratified into three age groups: 19-22, 23-26, and 27-30. The company plans to sample proportionally from each group. What sampling method is being used in this study?

• Random Sampling

• Stratified Sampling

• Systematic Sampling

• Cluster Sampling

A study investigates science teachers' attitudes toward online teaching. There are 500 teachers in Bandung city. The researcher randomly selects 50 teachers for the study. What sampling method is being used in this study?

• Random Sampling

• Stratified Sampling

• Systematic Sampling

• Cluster Sampling

A study investigates teaching methods in rural schools within West Java province. Traveling to every school is impractical, so the researcher selects a few districts and studies all schools within those districts. What sampling method is being used in this study?

• Random Sampling

• Stratified Sampling

• Systematic Sampling

• Cluster Sampling

You, as an undergraduate student, survey your own classmates to explore study habits during examination week. What sampling method is being used in this study?

• Random Sampling

• Convenience Sampling

• Purposive Sampling

• Cluster Sampling

A researcher wants to study the effectiveness of a new teaching method. She only selects students who have used the method before for at least one semester and have an attendance rate above 85%. What sampling method is being used in this study?

• Random Sampling

• Convenience Sampling

• Purposive Sampling

• Cluster Sampling

A researcher aims to study student satisfaction at the end of the semester using a database of 10,000 responses from a university. They select every 100th response. What sampling method is being used in this study?

• Random Sampling

• Stratified Sampling

• Systematic Sampling

• Cluster Sampling

The Ministry of Education wants to assess junior high school teachers literacy levels across the country. It first selects regions, then schools within those regions, and finally a random group of teachers from each school. What sampling method is being used in this study?

• Random Sampling

• Stratified Sampling

• Multistage Sampling

• Cluster Sampling

Researchers aim to compare academic performance among students from private (national), public, and international schools. They randomly select an equal number of students to participate in the study, ensuring that all three school types are proportionately represented in the sample. What sampling method is being used in this study?

• Random Sampling

• Stratified Sampling

• Systematic Sampling

• Cluster Sampling

Researchers are studying the opinion of high school students regarding the presence of AI. They want to collect responses from 200 students, ensuring that 50% are from urban schools and 50% are from rural schools. The researcher goes to selected schools and interviews students until they reach the required number for each group, regardless of whether the students are randomly selected or not. What sampling method is being used in this study?

• Quota Sampling

• Snowball Sampling

• Purposive Sampling

• Cluster Sampling

A researcher is studying the experiences of high school students who have studied in at least two different countries (could be when they are in elementary school or secondary school). Since these students are rare and difficult to find, the researcher initially contacts a few students who meet the criteria and asks them to recommend others with similar experiences. The process continues as each participant suggests another, creating a chain of referrals.

What sampling method is being used in this study?

• Quota Sampling

• Snowball Sampling

• Cluster Sampling

• Purposive Sampling