what is the difference between a control and treatment why does the control mean differ from the treatment mean what does the difference between the control group and the treatment group in an experiment mean why is mean higher than control why is the treatment mean lower than the control mean why is the control group's mean lower than the treatment group why is the rs mean lower than the treatment average how does a treatment group's mean compare to a control group why are the difference between control and treatment mean of a list experiment? why is the 'control' mean higher than the 'treatment' mean why is the difference between control and control mean in a list experiment why are mean and control variables in the same experiment why is the treatment mean higher than the control mean in a list experiment what is the difference between a control group and a treatment group in a list experiment what is the difference between control and treatment in a list experiment why is the control and treatment mean higher why does the rn mean of a list experiment lower than the control mean of a list experiment? why is treatment mean lower than mean why is the mean for both the control group and the treatment group lower than the mean for the control group why is the mean for the treatment group lower than the mean for the control group