Quiz on Data Collection and Sampling Methods

What is the second step in the PPDAC model for data processing?

• Problem

• Presenting Results

• Collecting Data

• Planning

Which sampling method relies on a random generator to ensure that every individual in the population has an equal chance of being selected?

• Stratified Sampling

• Simple Random Sampling

• Systematic Sampling

• Cluster Sampling

Which of the following is not a secondary data collection method?

• Published government reports

• Conducting an online survey

• Referring to previous research studies

• Data from company records

What type of sampling divides the population into groups and then selects all members from some of these groups?

• Systematic Sampling

• Simple Random Sampling

• Stratified Sampling

• Cluster Sampling

Which of the following is not a secondary data collection method?

• Data from previous academic journal

• Data collected from experiments in control study

• Accessing data from historical records

• Accessing data from a national statistics database

Which sampling method uses a fixed interval to select participants?

• Cluster Sampling

• Stratified Sampling

• Systematic Sampling

• Simple Random Sampling

What is a potential issue with using a non-representative sample?

• Increased accuracy

• Faster results

• Sampling bias

• Lower costs

What is the main goal of stratified sampling?

• To increase sample size

• To reduce costs

• To simplify data collection

• To ensure all groups are represented

What type of sampling method is used when a quality controller randomly selects 3 packs from a lot and inspects all items within those selected packs?

• Snowball Sampling

• Cluster Sampling

• Random Sampling

• Systematic Sampling

A researcher wants to study student study habits and ensures that the sample includes proportion of freshmen, sophomores, juniors, and seniors. What type of sampling method is being used?

• Cluster Sampling

• Random Sampling

• Stratified Sampling

• Non-Random Sampling