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 5 and the other group consisting of children aged 10. She studies the growth rate of these two groups regularly over a period of one yea. Based on the given evidence, it would be most accurate to say that Maria is using-research
A-Conceptual
B-Sequential
C-Field-setting
D-Cross-sectional
1 answer
D- Cross-sectional
1 answer