The takeaway, though, is consistent with what I've seen... people like code examples! Most people will scan until they see one, and start there. The heavy focus on API Reference in this study makes me think either the tasks were too specific, or the tutorials weren't comprehensive enough. For a good documentation site, most use cases should be covered by topical guides. Going to the reference guides to learn an API is like reading a dictionary to learn English. There's not a lot of context.