Francisco is studying young children's color preferences by age. He is interested in comparing three, four, and five-year old children's color preferences. He is reluctant to use simple random sampling because he wants to assure that he has comparable numbers of children at each age. Which quantitative sampling strategy is the approach for Francisco to use?
A) Cluster sampling
B) Convenience sampling
C) Stratified sampling
D) Systematic sampling

Question

Quizplus · Accepted Answer

Stratified sampling is the best approach for Francisco because he wants to ensure comparable numbers of children at each age group. With stratified sampling, the population is divided into subgroups or strata based on certain characteristics, and a random sample is then taken from each stratum. In this case, the strata would be the three age groups (three-year-olds, four-year-olds, and five-year-olds), and Francisco could select a proportional sample from each group to ensure that he has comparable numbers of children at each age.

Francisco Is Studying Young Children's Color Preferences by Age