Although cross-sectional designs are less time-consuming and allow researchers to compare children's abilities or knowledge at different ages or stages of development, only longitudinal studies truly allow researchers to track developmental changes over time.
Explanation:
Cross-sectional research designs measure one or more variables in one single point in time. If in this example, researchers want to compare children's abilities at different ages, they can measure that variable in different samples, with children of different ages. An advantage of this design its that it is less time consuming and it also consumes less resources.
Longitudinal research designs measure one or more variables on the same subjects over a period of time, a longitudinal study would allow researchers to track developmental changes over time because they can measure children's abilities at different stages of their life and since they would be the same children throughout the whole study changes are easier to identify and compare. Though it has many advantages, a longitudinal implies more time and resources.
A one-way between-subjects ANOVA is a Type of test which is used in comparing two, three or more groups of partakers that are not related in any way whatsoever.
The groups of participants are autonomous and not depended on one another. So, a participant in one group will have no connection to participants in the other groups.
Uniform Anatomical Gift Act is a recommendation of the National Conference of Commissioners on Uniform State Laws that all state accepted, allowing individual to donate their bodies or body parts after death for used in transplants, research, or education.