Psych question on functional behaviour assessment

1)describe the advantages and disadvantages of each type of functional behaviour assessment.
 
2)Describe when each type of assessment should be conducted.
3)Generally, how is the assessment data used to develop and individualized intervention?
 
4)Reflect on what you know about the characteristics of autism. Do you think (functional behavior assessment ) this is a good approach to developing behaviour support plans for persons with autism? And why?