why is cash payment used in a cinema test? what is the purpose of cash payments why do cinemas not accept cash payment why will sales increase when a movie playing in a cinema what is an experiment that will find a way to isolate a confounding variable which factor can be a confounding variable? what's the effect if the experimental group accepts cash payment? when do you take cash payment when does cash payment increase sales what is the difference between cash payments and cash payment will gaming increase movie sales what is the effect of cash payment in a cinema which factor increases sales of a cinema ticket does cinema gaming pay cash if a gaming section is good, sales will increase how does a casino confound a group does the experimental group accept money does cinemas accept cash payments? explain. what is the limiting variable in experimental research why does the cinema take cash payment