AP PSYCHOLOGY

Detailed explanation-1: -The negative control group is a group that does not receive changes to the independent variable. It is used as a benchmark to compare the results of the experimental group to.

Detailed explanation-2: -Unlike the experimental group, the control group is not exposed to the independent variable under investigation and so provides a base line against which any changes in the experimental group can be compared.

Detailed explanation-3: -What Is Non-Experimental Research? Non-experimental research is research that lacks the manipulation of an independent variable. Rather than manipulating an independent variable, researchers conducting non-experimental research simply measure variables as they naturally occur (in the lab or real world).

Detailed explanation-4: -A control group in an experiment does not receive the treatment. Instead, it serves as a comparison group for the treatments. Researchers compare the results of a treatment group to the control group to determine the effect size, also known as the treatment effect.

Detailed explanation-5: -In an observational study, there is no interference or manipulation of the research subjects, as well as no control or treatment groups.