It is called the "Test" group.
A medication given in research that has no medical properties is called a placebo
A placebo.
Placebo.
A placebo is used in an experiment as a control. For example, when testing a new medication, experimenters will split the group in two- a control group and an experimental group. The experimental group receives the actual medication, while the control group receives a placebo (in this case, a sugar pill). The placebo will not have any actual effect on the person, but is meant to make sure people aren't making themselves believe that they are cured.
A placebo effect
Let's say a medical lab is doing en experiment. They would take a control group and give a certain % of people the placebo and the rest a real drug and compare the affects it had on the patients. One argument is if people "believe" they are taking the real drug it can actually affect them physically.
A placebo
"Placebo". Alternatively, "homeopathy".
A placebo has no medical properties at all so, yes, you would be at risk of getting pregnant.
Placebo control group: This group receives a placebo treatment that resembles the intervention but has no active ingredients or effect. No-treatment control group: This group does not receive any treatment or intervention, serving as a comparison to the group receiving the intervention.
control group and placebo group variable and controlled
Nothing. The placebo is not part of the birth control cycle. It has no purpose except to help keep you in your routine, and keep track of your pill schedule.