The willingness of research subjects has no effect on whether experimental or quasi-experimental techniques are used.

B. False

The willingness of research subjects can significantly impact whether experimental or quasi-experimental techniques are used. In experimental designs, obtaining informed consent and ensuring the participation of willing subjects is crucial for ethical standards. If subjects are unwilling or unable to consent, researchers may resort to quasi-experimental techniques, which can include pre-existing groups or other methods that do not rely on random assignment. Thus, the willingness of subjects does have an effect on the choice of research methodology.