When Leanne heard about experimental evidence that drinking orange juice triggers hyperactivity in children she questioned whether the tested children had been randomly assigned to experimental condi?

Leanne's skepticism about the study's findings suggests she is considering the validity of the experimental design. Random assignment is crucial in experiments to ensure that differences in behavior, such as hyperactivity, can be attributed to the treatment (in this case, Orange Juice) rather than other variables. Without random assignment, the results could be influenced by pre-existing differences among the children, potentially skewing the conclusions. Her questioning indicates an understanding of the importance of rigorous methodology in research.