Psychology majors at the state college consist of 40% males and 60% females.The psychology department is conducting a survey of its majors and obtains a sample by randomly selecting students so there will 20 males and 30 females from the list of psychology majors.What kind of sampling is used in this example?

Question

Quizplus · Accepted Answer

Proportionate stratified random sampling is used when the population is divided into subgroups (strata) based on a particular characteristic, and a random sample is drawn from each subgroup based on its proportion to the total population. In this example, the population (psychology majors) is divided into subgroups based on gender (males and females) and a sample is drawn from each subgroup in proportion to their representation in the population (40% males and 60% females). Therefore, choice B, proportionate stratified random sampling, is the best answer.

Psychology Majors at the State College Consist of 40% Males