When observational data are being collected, the observer’s
presence may cause a person to behave differently, a phenomenon known as reactivity.
<span>
To add, </span>reactivity<span> <span>is a
phenomenon that occurs when individuals alter their performance or behavior due
to the awareness that they are being observed. The change may be positive or
negative, and depends on the situation.</span></span>
Answer: Anorexia Nervosa
Explanation:
Anorexia Nervosa, also known simply as Anorexia, is an eating disorder characterized by abnormal weight loss and an immense fear of gaining weight. People who suffer from this disorder carry out a series of behaviors to avoid gaining weight, such as: not eating, exercising excessively and taking medications that contribute to faster weight loss. Vomiting is also another form used.
People with Anorexia Nervosa have a distorted image of their body. They look in a mirror and are overweight, which leads them to carry out all kinds of activities to lose weight. A person with this disorder may have depressive behaviors that improve when they see that they are losing the desired weight. This disorder has a high rate in women and the treatment involves a combination of psychological therapy and possible medical hospitalization to help the person gain weight.
Answer:
a) the United States puts effective trade barrier in a place to limit trade with other nations.
b) the United States stayed out of major world war and instead made economic investment.
c) the United States prevented other countries from abandoning the gold standard.
d) the United States became one of the world leading importer and exporter of goods
