The answer to this question is Bias
When researchers are being biased in their analysis, all of their analysis become really unreliable because it does not fully reflect to the truth.
To make the result of the researchers fully reliable, researchers need to base their analysis solely to the data at hand
Lev Vygotsky's theory regarding private speech or a child's tendency to talk to themselves during play is most accepted in the research community today. His theory of private speech has been considered as significant to a lot of recent developmental phycologists. <span>Evidence has </span>also <span>supported Vygotsky's theory that private speech provides many </span>advantages in the development of children.
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Because are strong and can fight for their right.
