First, a short personal note to make you understand why this is important to me. To make a long story short, the son of a friend has some atypical form of autism and language troubles. And that kid matters a lot to me, so I want to become stronger in helping him, to be able to better interact with him and help him overcome his troubles.
But I don't know much about psychology. I'm a computer scientist, with a general background of maths and physics. I'm kind of a nerd, social skills aren't my strength. I did read some of the basic books advised on Less Wrong, like Cialdini, Wright or Wiseman, but those just give me a very small background on which to build.
And psychology in general, autism/language troubles in particular, are fields in which there is a lot of pseudo-science. I'm very sceptical of Freud and psychoanalysis, for example, which I consider (but maybe I am wrong?) to be more like alchemy than like chemistry. There are a lot of mysticism and sect-like gurus related to autism, too.
So I'm bit unsure on how from my position of having a general scientific and rationality background I can dive into a completely unrelated field. Research papers are probably above my current level in psychology, so I think books (textbooks or popular science) are the way to go. But how to find which books on the hundreds that were written on the topic I should buy and read? Books that are evidence-based science, not pseudo-science, I mean. What is a general method to select which books to start in a field you don't really know? I would welcome any advise from the community.
Disclaimer: this is a personal "call for help", but since I think the answers/advices may matter outside my own personal case, I hope you don't mind.
Thanks for all the answers and support; I wasn't looking as much for actual answers to my situation than to general method on how to dive into a new field, but I do appreciate them. Some of the advices were things I already was doing, but I'm glad to have confirmation I was on the right tracks. Other advices were new and interesting, I'll see how to try them.
I don't want to give too much details on a public site (it's not like my "kilobug" pseudonym is very stealthy, to start), so some advice don't apply to that specific case, but thanks anyway. (Note : I don't mind giving more details in private if one of you has knowledge and the topic and the time to answer me, I would appreciate it a lot, but it wasn't my goal).
For the more general question, I did have a look on PLoS (as suggested), and I did find interesting studies in absolute, but most studies aren't really helpful to actually deal with the child. So I was more looking to comprehensive books, textbook or popsci, that summarize and collects studies, giving practical insights and advises. I did order the "psychology" textbook suggested by MIT, thanks for pragmatic for linking me to it, I'll see how much that'll help me to do further research.
Thanks to all anyway!
Possibly helpful older LW posts: