<span>The period of life from about age 12 to 18 and the early twenties, during which a young person is no longer physically a child but is not yet an independent, self-supporting adult, is called adolescence.
</span><span>In this period the adolescents struggle with their body changes, mood swings and social issues. </span>
Judge the likelihood of things in terms of how well they represent a particular prototype.
The correct answer is Systematic observation
Systematic observation is a method used to understand how a particular activity or task works. The researcher observes the steps of a process, the tools used, the difficulties that appear, the conversations and results of the work.
Systematic Observation is guided by a defined objective, something you want to know about that activity. The observation is made repeatedly until there is sufficient evidence to state this.
Systematic Observation can be used to do Behavioral Mapping, Task Analysis or Activity Analysis.