CCS2218 Q2

What is the primary purpose of sampling in research?

• To study the entire population

• To select a sample from a population

• To eliminate bias in research

• To increase the sample size

Which of the following is a type of probability sampling technique?

• Judgemental sampling

• Snowball sampling

• Convenience sampling

• Simple random sampling

What is convenience sampling?

• Selecting respondents through a lottery system

• Selecting respondents from a specific demographic

• Selecting respondents based on the researcher's convenience

• Selecting respondents based on random selection

In stratified sampling, what is the first step?

• Divide the population into homogeneous strata

• Select a random sample from the population

• Conduct a survey on the entire population

• Choose a sample based on convenience

Which method of data collection typically yields the highest response rate?

• Direct observation

• Mailed questionnaire

• Telephone interview

• Face-to-face interview

What is a disadvantage of using a mailed questionnaire?

• In-person clarification of questions

• Immediate feedback from respondents

• Low response rate

• High cost of distribution

What is the main advantage of direct observation as a data collection method?

• It allows for subjective interpretation

• It requires no training for the observer

• It provides objective data without respondent bias

• It is the cheapest method available

Which sampling technique involves selecting clusters based on geographical areas?

• Systematic sampling

• Stratified sampling

• Cluster sampling

• Simple random sampling

What is the purpose of designing a questionnaire?

• To collect data on attitudes and demographics

• To eliminate the need for data analysis

• To increase the length of the survey

• To confuse the respondents

What is a key consideration when designing a questionnaire?

• Include as many questions as possible

• Avoid sensitive questions

• Use complex language

• Make it as long as possible