Question

A research study was done and the researcher knew which participants were in the experimental group, and which were in the control group. The participants did not know what group they were in. In psychological research, this study is_______.

Answer 1

This is a blinded experiment.

Step-by-step explanation:

In this type of study, none of the participants know about the variables that might affect the results, until the end. This is usually done to avoid a placebo effect. It is considered to be an important tool in several scientific areas, especially in medicine and psychology.

There is a type of study where not even the researchers know about the dependent variables. This is called a double-blind study.