Some researchers apply a narrow approach to "explanation." In this view, an explanation is contextualized to only a particular case in a particular time and place, and thus generalization is considered inappropriate. In fact, an over-specific explanation might not explain anything at all. For example, if one asks, "Why Alex Yu behaves in that way," the answer could be "because he is Alex Yu. He is a unique human being. He has a particular family background and a specific social circle." These "particular" statements are always right, thereby misguide researchers away from the issue of external validity.