In an experimental study, a lab wanted to divide volunteers into two
groups to determine the effect of a particular phone app to help make
people more punctual (on time). The 50 volunteers in the study will be
assigned to either a group of 25 who use the app for a week or a group
of 25 who do not use the app. The participants were asked to come to a
lab to receive the app (or not) at 10:00 am on a Monday. Answer the
following question: Why would those performing the study not want to
assign the participants in the two treatments (groups)based on who
showed up to the study session first? *