Introductory Psychology CLEP Prep Practice Exam

In a research study, a researcher manipulates one or more variables to see its effect on other variables. This type of research is known as:

1. Surveys

2. Correlational research

3. Experimental research

4. Naturalistic observation

The correct answer is: Experimental research

Experimental research is a type of study where the researcher manipulates one or more variables to see their effect on other variables. This allows the researcher to establish cause and effect relationships between variables. Surveys are a type of research that gathers data through self-reported information from participants but do not manipulate variables. Correlational research examines the relationship between variables but does not manipulate them. Naturalistic observation is a type of research where behaviors are observed in their natural environment but does not involve any manipulation of variables. Therefore, experimental research is the best answer as it accurately describes the type of research mentioned in the question.