Data Collection Methods

What is the primary goal of sampling in research?

• To survey everyone in the population

• To select a subset that represents the whole population

• To avoid data collection

• To reduce the sample size to zero

Which of the following is an example of probability sampling?

• Quota sampling

• Purposive sampling

• Simple random sampling

• Convenience sampling

Non-probability sampling is best described as:

• Completely random with no researcher involvement

• Subjective with researcher judgment involved

• Always producing generalizable results

• The same as systematic sampling

Which sampling method asks participants to recruit others?

• Quota sampling

• Snowball sampling

• Simple random sampling

• Cluster sampling

Which is NOT a quantitative data collection method?

• Test

• Questionnaire

• Structured interview

• Focus group discussion

What type of data does qualitative research mainly collect?

• Numerical data

• Non-numerical data

• Temperature data

• Random numbers

Which sampling technique divides the population into groups and randomly selects entire groups?

• Stratified sampling

• Cluster sampling

• Systematic sampling

• Quota sampling

Which of these is an example of convenience sampling?

• Randomly selecting students from a list

• Interviewing people at a shopping centre

• Dividing the population into strata

• Selecting names from a hat

Which method is most appropriate when generalizing findings to a population?

• Probability sampling

• Convenience sampling

• Snowball sampling

• Purposive sampling

What is the main characteristic of purposive sampling?

• Selecting participants randomly

• Selecting typical or informative cases

• Ignoring all judgment

• Allowing everyone to self-select