Wait I know the answer but let me just make sure it is the right answer
Answer:
you can interview people in your community. Investigate or look around if they are any issues.
Explanation:
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Answer:
The experimental design is called Between Subjects Design or Independet Measure.
Explanation:
In the experimental design "Independet Measures" you have different groups. Each group is tested under certain conditions whereas a member of one group cannot be part of another group. A commonly known case were this experimental design is used is drug testing. One group is given the medication whereas the other group receives the placebo.
Answer: age-related
Explanation:
age-related cognitive differences.