Is there any conjunction fallacy research which addresses the alternative hypothesis that the observed results are mainly due to social dynamics?
Most people spend most of their time thinking in terms of gaining or losing social status, not in terms of reason. They care more about their place in social status hierarchies than about logic. They have strategies for dealing with communication that have more to do with getting along with people than with getting questions technically right. They look for the social meaning in communications. E.g. people normally try to give – and expect to receive – useful, relevant, reasonable info that is safe to make socially normal assumptions about.
Suppose you knew Linda in college. A decade later, you run into another college friend, John, who still knows Linda. You ask what she’s up to. John says Linda is a bank teller, doesn’t give additional info, and changes the subject. You take this to mean that there isn’t more positive info. You and John both see activism positively and know that activism was one of the main ways Linda stood out. This conversation suggests to you that she stopped doing activism. Omitting info isn’t neutral in real world conversations. People mentally model the people they speak with and consider why the person said and omitted things.
In Bayesian terms, you got two pieces of info from John’s statement. Roughly: 1) Linda is a bank teller. 2) John thinks that Linda being a bank teller is key info to provide and chose not to provide other info. That second piece of info can affect people’s answers in psychology research.
So, is there any research which rules out social dynamics explanations for conjunction fallacy experimental results?
I don't know of any research to point you to but just wanted to say I think you're right we have reason to be suspect of the normative correctness of many irrationality results. It's not that people aren't ever "irrational" in various ways, but that sometimes what looks from the outside like irrationality is in fact a failure to isolate from context in a way that humans not trained in this skill can do well.
I seem to recall a post here a while back that made a point about how some people on tasks like this are strong contextualizers and you basically can't get them to give the "rational" answer because they won't or can't treat it like mathematical variables where the content is irrelevant to the operation, but related to the ideas shared in this post.
People got post-research interviewed and asked to explain their answers. There were social feedback mechanisms. Even if there wasn't peer to peer social feedback, it was certainly possible to annoy the authority (researchers) who is giving you the questions (like annoying your teacher who gives you a test). The researchers want you to answer a particular way so people, reasonably, guess what that is, even if they don't already have that way highly internalized (as most people do).
This is how people have learned to deal with questions in general. And people... (read more)