Explanation:
unintentional weight loss and a rapid or irregular heartbeat.
Examining the previous work in the area that one is interested in researching is an example of looking at existing literature.
It is also called Literature Review and is also part of the research.
<h3>What are the different stages of research?</h3>
There are several stages of research. They are:
- Problem Identification
- Reviewing existing literature
- setting research questions, objectives, and hypotheses
- electing ones study design
- electing sample design
- collecting, processing, and analyzing research data
- report writing
See the link below for more about research:
brainly.com/question/968894
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Answer: B
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Adolescent egocentrism is a term that David Elkind used to describe the phenomenon of adolescents' inability to distinguish between their perception of what others think about them and what people actually think in reality.[1] David Elkind's theory on adolescent egocentrism is drawn from Piaget's theory on cognitive developmental stages, which argues that formal operations enable adolescents to construct imaginary situations and abstract thinking.[2]
Accordingly, adolescents are able to conceptualize their own thoughts and conceive of other people's thoughts.[1] However, Elkind pointed out that adolescents tend to focus mostly on their own perceptions – especially on their behaviors and appearance – because of the "physiological metamorphosis" they experience during this period. This leads to adolescents' belief that other people are as attentive to their behaviors and appearance as they are of themselves.[1] According to Elkind, adolescent egocentrism results in two consequential mental constructions, namely imaginary audience and personal fable.