Answer: Hasty generalization
Explanation:
Hasty generalization is known to be a type of fallacy in which an individual make conclusion as a result of inadequate facts or information without ascertaining if it is true or not. It is when a person relies on small samples instead of the whole samples in making judgment. It is also known as over generalization fallacy. Thus, it is a decision reached by an individual due to impatience and so on.
The researcher is guilty of of using hasty generalization in reasoning.