A recent mathematical model by Horvath which predicts the process of participation in group discussions is compared to several alternative models. The models can be applied to data for which the basic unit is the act and to data for which the basic unit is a continuous sequence of acts. In both cases, when statistical tests of signiﬁcance are employed, most of the more restrictive models are rejected.
Kadane, Joseph B.; Lewis, Gordon H.; and Ramage, John G., "Stochastic Theories of Participation" (1968). Cowles Foundation Discussion Papers. 487.