Maria is studying the effects of calcium on the development of children. She administers different levels of calcium to two groups of children, one group consisting of children aged five and the other group consisting of children aged ten. She studies the growth rate of these two groups regularly over a period of one year. On the basis of the given evidence, it would be most accurate to say that Maria is using _____ research.

Question

Quizplus · Accepted Answer

Maria is studying the growth rate of two groups of children over a period of one year, which suggests that she is conducting a longitudinal study. Cross-sectional research involves studying different groups of people at a given point in time, while factorial research involves manipulating multiple variables to assess their impact on an outcome. Single case experimental research involves studying a single individual over time and manipulating one variable to observe its effect.

Maria Is Studying the Effects of Calcium on the Development