Treatments

Definition

Treatments are the specific conditions or interventions applied to subjects in an experiment. They are used to determine the effect of variables on outcomes.

5 Must Know Facts For Your Next Test

1. Treatments are essential for comparing different groups in an experimental study.
2. Each treatment level corresponds to a different value of the explanatory variable.
3. Random assignment of treatments helps to eliminate bias and ensures validity.
4. The number of treatments can impact the complexity and statistical power of the experiment.
5. Control groups often receive no treatment or a standard treatment for comparison.

Review Questions

• What is the role of treatments in an experimental study?
• Why is random assignment important when applying treatments?
• How does the number of treatments affect an experiment?

Related terms

Control Group:

A group in an experiment that does not receive the treatment, used as a baseline for comparison.

Random Assignment:

The process of randomly allocating subjects to different treatment groups to ensure unbiased results.

Explanatory Variable:

$A variable that is manipulated by researchers to observe its effect on the response variable.$