Psychology in workplace

[OneDaySoonerThanLater]

We have psychologist run sessions in the workplace. These have been held on a regular basis, monthly for over a year now, with the aim of increasing time management. The first sessions were all about what personality types we were and how we interact with each other. In the beginning it was a bit of fun and confirmed that we are a happy and productive small workplace. The issue I have is that these sessions take so much of our time because each one is about 2 and a half hours and nothing results from them. In the last session the psych mentioned a personality trait about me that was total news to me and has upset me somewhat. It is nothing bad. I'm just feeling vulnerable and wish that I'd have been told this in private and not in front of the whole group. Do I have any rights with respect to these ongoing sessions? We are too small for a HR department.

There are a few different things going on in this post.
It isn’t uncommon to have a coach or psychologist run sessions for a company.
But if you don’t think that they are not productive then you should raise that, ask for an evaluation of the sessions.
Raising personal traits is another issue and it’s really hard to comment without some idea of what was said. If it was nothing negative then they may not have expected you to find it problematic. I think the first thing to do is to raise it with the psychologist. Are there group rules for the sessions? If there are then perhaps ask that personal feedback is given individually. If there are no group rules then I would ask for them to be created and suggest it as a rule.