Sir Francis Galton was an early pioneer in the study of twins. When he studied twin pairs, he asked them to identify other twins who might want to participate in his research. This technique is called __________.

Question

Quizplus · Accepted Answer

The technique described is snowball sampling, as Galton asked initial participants to identify others who might be interested in participating. Random assignment involves randomly assigning participants to different groups or conditions, and convenience sampling involves simply sampling whoever is available or convenient. The ripple effect refers to a phenomenon where interventions or treatments spread beyond those directly involved, and is not relevant to this scenario.

Sir Francis Galton Was an Early Pioneer in the Study