In order to make the experience between the control group and the experimental group as equivalent as possible in a formal experiment,both groups must receive some treatment or have something done to them in order to avoid the
A) manipulation check.
B) dependent variable.
C) placebo effect.
D) random sample.

Question

Quizplus · Accepted Answer

The placebo effect is the idea that participants may experience changes simply because they expect that a certain treatment or intervention will have an effect. To avoid this, both groups must receive some form of treatment, even if the treatment provided to the control group is a placebo (i.e. a treatment that looks and feels like the experimental treatment but lacks active ingredients). This ensures that any differences between the two groups can be attributed to the intervention being tested rather than participant expectations or biases. A manipulation check is a method for ensuring that the manipulation of the independent variable is working as intended, and is not directly relevant to the equivalence of the two groups. The dependent variable is the outcome variable of interest, and is not something that can be controlled by the experimenter to make the groups more equivalent. A random sample is a method for selecting participants that ensures that each individual has an equal chance of being selected, but it does not directly address the issue of equivalency between groups.

In Order to Make the Experience Between the Control Group