COMPREHENSIVE STUDY SHEET 2026 SOLVED
QUESTIONS PREMIUM BUNDLE
◉ Sample vs population.
Answer: A sample is a subset of individuals selected from a larger
population, which is the entire group being studied.
◉ Convenience sample vs representative sample.
Answer: A convenience sample is drawn from a population based on
ease of access, while a representative sample accurately reflects the
characteristics of the population.
◉ Sampling error.
Answer: The difference between the sample statistic and the actual
population parameter due to the sample not perfectly representing
the population.
◉ Probability vs nonprobability sampling.
Answer: Probability sampling involves random selection, allowing
each member of the population an equal chance of being chosen,
while nonprobability sampling does not.
, ◉ Stratified sampling.
Answer: A sampling method that divides the population into
subgroups (strata) and randomly samples from each stratum.
◉ Clustered sampling.
Answer: A sampling method where the population is divided into
clusters, and entire clusters are randomly selected for the sample.
◉ Open-ended vs closed-ended survey questions.
Answer: Open-ended questions allow respondents to answer in their
own words, while closed-ended questions provide specific response
options.
◉ Cognitive interviewing in survey design.
Answer: A technique used to test and improve survey questions by
understanding how respondents interpret and answer them.
◉ Demographic and identity questions.
Answer: Questions that gather information about respondents'
characteristics, such as age, gender, ethnicity, and socioeconomic
status.
◉ Challenges and benefits of online research.