Yeah I'd say Sociology as well. I think at AS Psychology is hard because of the volume of material to be learnt, whereas with AS Sociology, while there is still a lot to learn, there is the additional skill of having to "decode" essay questions - e.g. what material do you include in the essay question "Assess the view that 'it no longer makes sense to talk about the patriarchal family'" etc., instead of "Assess/Evaluate" like it is in Psychology.