When one closes off an area to stop people or goods from entering or leaving a place this means that an embargo on goods is present. This is usually done when one doesn't want a nation to continue its economic relationship with other nations. When people are stopped from entering or leaving a place, this would mean that they are put under quarantine.
Answer:
Treatment misidentification
Explanation:
Assistant Z's action introduces treatment misidentification during his therapy. It arises when the researcher claims a change in independent variable due to the dependent variable. Placebo effect is a way of treatment when patients are provided with fake pills.
However, it is due to a treatment that goes unnoticed by the researcher during the treatment which is closely related to the primary treatment. The researcher unconsciously distorts the result when working with patients. Thus, the researcher introduces internal invalidity due to treatment misidentification.
The way he handeled his leadership, he was a dictator, he too much power for himself.
