Answer:
1. A ratio scale of measurement
Step-by-step explanation:
Todd is also studying the effect of popularity on academic success for his research methods project. He decides to measure popularity by asking each elementary school student to tell him how many friends he or she has. He assumes that more friends means the student is more popular. This variable is best described as a ratio scale of measurement. Ratio scale is a type of variable measurement scale which is quantitative in nature. Ratio scale allows Todd to compare the intervals or differences in his research by asking each elementary school student to tell him how many friends he or she has.