Please quote the exact number in those papers. The summery of the first do not specify the levels of women interrupting women or men interrupting men, explicitly focusing only on interaction between men and women.

The other one only say that "both men and women exhibiting higher levels of interruption behavior in male-dominated groups".

Citations is only as good as the ability it provide to verify a claim. Those do not do that as far as summery goes.

I'm not trying to prove anything, it just sounded like people were interested in relevant research with higher sample sizes. The first says "The participants for this study included 216 university students". The second says "We systematically varied the sex composition of the six-person groups, [...] Data on 31 groups in all were collected."

The second study directly addresses this discussion: "The odds of a male attempting to interrupt another male (.078) are less than one-half the odds of a male attempting to interrupt a female (.163). Females attempt to interrupt male and female speakers at essentially identical levels (odds of .146 and .141 respectively). In other words, men discriminate in their interruption attempts, interrupting women much more often than men. Women, on the other hand, do not discriminate; they attempt to interrupt men and women equally. Group composition does not appear to influence interruption attempts."

Interesting to see actually numbers. They imply that the one odd number here is the low rate of male attempting to interrupt another male, and that the natural base line should be around 0.1435 (assuming that the female variance of 0.0025 is the natural one for all humans).

That changes the tone of the issue. A 0.0195 difference from the norm is tiny on the negative discrimination of men interrupting women if we compare it to the norm difference of 0.0655 as positive discrimination for men interrupting men. As a social issue of 13.6% negative discrimination vs 45.7% positive discrimination, its a good time to ask what we want to fix. Is it the negative 13.6%, which mean we want men to interrupt women at the same rate as women interrupt women, or do we want men to treat other men worse by interrupting men as much as women do?

It also raises questions about moderators. Should we favor male moderators over female ones because they will in average interrupt 20% less (.241 vs .287) for a panel of 50% women and 50% men? The original post had a panel of 80% men and 50% men, which given the above numbers would have a male moderator interrupt a panelist at the rate of 0.095 while a female moderator would have interrupted a panelist with the rate of 0.145. A female moderator would be 52% worse than a male moderator in this specific case.

Still a sample too small, they need at least 1500 participants IIRC