<span>Since you did not give the choices, here is a brief information about mental disability:
</span><span>A person who was born with a mental disability and cannot perform some of the functions required by everyday life is considered to have intellectual disability.
</span><span>
>An intellectual disability is a disability characterized by significant limitations both in intellectual functioning and in adaptive behavior that affect many everyday social and practical skills.</span>
Answer:
All the data collected through this type of experiment should be analyzed upon confrontation of variables combined with the elements exposed to procedure.
Explanation:
In this case, individuals are submitted to ingestion of specific food on a regular basis under the same diet to find out if they could have bad dreams during sleep as an index of distress. They should also be asked to sleep the same amount of hours on a daily rate while the experiment is conducted. The results should be confronted with any particular characteristics that each individual being analyzed could present, such as: age, weight, high/low pressure levels, hours of sleep, medication, regular activities and food habits, among any other possible elements that may be relevant or useful in order to come to a conclusive result.
I hope it helps!