12 Experimental Control and Internal Validity
- What are the potential threats to the validity of research?
- What is experimental control?
- What effect do extraneous variables have on the validity of research?
- What is meant by confounding? Why does confounding reduce an
- What are some methods of controlling for extraneous variables in
- What are some methods for increasing the validity of experimental
- What are manipulation checks and confound checks, and what can they
- What are some common artifacts in experimental research, and how can