Which of the Following Is TRUE of Experiments

question 12

Multiple Choice

Which of the following is TRUE of experiments?

• A) An experiment has greater ability to supply evidence of causality because it takes longer to complete than a descriptive study.
• B) Researchers have more control when performing experiments than they have when using exploratory or descriptive designs.
• C) External validity is more important to determine than internal validity.
• D) An experimental design is a research design in which the investigator has direct control over at least one independent variable and manipulates at least one dependent variable.
• E) Both b and d are true.

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Definitions:

Independent Variable

In an experimental setting, the variable that is manipulated or changed by the researcher to explore its effects on a dependent variable.

Experimental Group

A group in a scientific study that receives the treatment or condition being tested, as opposed to a control group, which does not.

Control Group

In experimental research, a group of subjects that does not receive the treatment being tested, used as a benchmark to measure how other subjects do.

Warm Room Temperature

A temperature setting in an indoor environment that feels comfortably warm to the majority of people, typically around 68 to 77 degrees Fahrenheit (20 to 25 degrees Celsius).