Final answer:
Customer satisfaction is not a process variable but an outcome variable, external to group dynamics.
Step-by-step explanation:
Among the options provided, customer satisfaction is not considered a process variable in the context of group dynamics and collective behavior.
Process variables refer to the dynamics within the group that influence its functioning and performance. These include group trust, motivation, and conflict resolution. Conversely, customer satisfaction is an outcome variable, which refers to the result or impact of the process or service being evaluated and is external to the group's internal processes.