Neurobiologist: In a recent experiment, laboratory mice whose daily diets were supplemented with the artificial sweetener Zytrol performed significantly worse on spatial memory tasks than a group of mice whose diets were supplemented with an equal caloric amount of natural sucrose. Therefore, we can conclude that the consumption of Zytrol actively impairs spatial memory function.
Statement: The newly discovered fact that mice fed a standard baseline diet containing neither Zytrol nor sucrose performed identically on the spatial memory tasks to the mice fed Zytrol significantly weakens the neurobiologist's argument.
Cevap: Cevap
Cevap
True
The statement accurately identifies a classic weakening scenario involving experimental baselines. The neurobiologist's argument relies on a flawed comparison, implicitly assuming the sucrose group represents normal cognitive function. By revealing that a truly neutral baseline yields the exact same results as the Zytrol group, the new evidence shifts the causal arrow, indicating that sucrose improves memory rather than Zytrol impairing it. This destroys the argument's core causal claim, making the statement definitively true.
Adım Adım Çözüm
Anahtar Kavram
Weaken