Psychiatrists help patients with mental disorders (psychologists also help healthy people), such as schizophrenia, depression bi-polar disorder. Psychiatrists work directly with patients and typically have a lot more medical training that psychologists.
Answer:
The answer is "regression toward the mean".
Explanation:
Regression towards the normal distribution is also known in statistical data as median regression, reversal to mean and reversal to mediocrity is the concept that emerges whenever a sample point of the random variable is almost an outliers, a futuristic point probably is closer to the center or average. Even before symptoms of depressive symptoms are by far the worst, anything they do to try and alleviate this same condition is more likely than worsening to improve. This is better illustrated by the return to the mean.
The answer is agonistic interaction
