What does a homestudy consist of?

Agency gave us stack of forms to complete. Our family history, personal questions to answer, copies of some certificates such as marriage, birth, financial questions, tax return, personal references. Ran a criminal background check, and check to see if we'd ever been involved in child abuse/neglect. After all the was submitted a date was set for visit to our home by a SW. The actual tour of home was quick and painless. The meat of the visit was a joint interview with dh & I, and then an individual one. Most of the questions were the same as we had already completed in the packet we sent them. Our SW was kind and easy to talk to. My nerves quickly subsided. I found I worried a long time for nothing. We passed with no problem, as I believe most do. Fees do vary, but I hear often of home studies costing @ $1500 - $3000. I'm sure some are less and some more. Ours was in that range.