two psychology questions

I need two questions answered by 5/14/15 by 3:30 p.m eastern standard time. Both questions need to be 250 words.

First Question:  In social science, define what constitutes “the problem” as it applies to social research. Using autism as your topic write what you as the investigator consider as the problem. 

Second Question: What is the number 1 cause of abnormal behavior? Expain  and describe it.