Question

A cognitive psychologist conducts a study to examine differences in cognitive functioning across stages of adulthood. He opts to

Answer 1

A cognitive psychologist conducts a study to examine differences in cognitive functioning across stages of adulthood. He opts to  study one group of young adults ages 21-28. one group of middle-aged adults aged 41-48, and one group of older adults ages 61- 68- The psychologist finding that  that the middle age  group outperforms the older group is a valid criticism to the study's conclusion

Explanation:

A cognitive psychologist concludes that age relates to cognitive performance on these tasks.This statement means that as a person age's its ability to perform the cognitive task declines .In the study conducted between the various age group the cognitive psychologist where able to find that the people in their middle age (i.e. between 41-48) were able to perform the cognitive task is a better way than the people in the older group. and the younger group was able to perform the cognitive task much better than the middle and the old age group.

Now their is no need for the  comparison of the middle age and the old age people for performing the task because as er the conclusion the cognitive skills decline with the age.

So,the psychologist finding that  that the middle age  group outperforms the older group is a valid criticism to the study's conclusion