Before revision:  What do standard parallel models predict about this statistic? Finally, are there psychological questions that pertain to these distinctions and are there any experiments that have emerged to assess the latter. All these matters are targeted for our exposition .
After revision:  What do standard parallel models predict increasing intercompletion times as the individual channels continue to finish. Nevertheless, dramatically increasing hazard functions of the channels can defeat that tendency. And, standard parallel models can predict intercompletion time independence but only when individual channel distributions are exponential. Finally, we use these and ancillary mathematical results to conclude that standard serial and standard parallel models can never perfectly mimic one another. Therefore, our findings set the stage for explicit model testing between these classes .