In most books it is stated that the social worker should and should intervene, but say nothing of the research.
Is it necessary to investigate and intervene?
And if the answer is yes. What steps will you have to follow to investigate?
Yes, depending on the case. Investigation usually involves interviewing people who you think may be a part of the problem and/or solution; someone who may have the knowledge to answer the information that you need. Hope this helps.
Broadly speaking, it does depend on exactly what you want to find out and your research topic. However, qualitative research methodologies, in general, seem to be more suitable to explore this area than quantitative ones. Considering possible research methodology, you can try to carry out an ethnography study, within which you can apply different research methods such as interviewing and observation supported by documentary study.
To reach to the roots causes of the issue under consideration the social workers are required to serve as an investigator. this segment is related with the case work techniques.
but for research and learning purpose social workers are not required to investigate the matter in deapth he is required to observe the situation to drawn the conclusion