Asked by Sabrena Jones on Apr 26, 2024
Verified
Which of the following is a technique to improve internal validity?
A) Addition of a control group
B) Experimenter expectancy
C) Participant bias
D) Use of a confederate
Internal Validity
The extent to which a study accurately demonstrates a cause-effect relationship by controlling for extraneous variables and bias.
Control Group
In an experiment, the group that does not receive the treatment or intervention being tested, serving as a benchmark for comparison.
- Understand the principles and ramifications of internal and external validity.
Verified Answer
MA
Maria AnagnostopoulosApr 30, 2024
Final Answer :
A
Explanation :
Adding a control group is a technique to improve internal validity by ensuring that any observed effects are not due to extraneous variables or factors other than the independent variable being manipulated. The other choices listed are potential sources of bias that can compromise internal validity.
Learning Objectives
- Understand the principles and ramifications of internal and external validity.