Final answer:
Cognitive dissonance is more likely to occur when the dissonant behavior is known to everyone, done voluntarily, and can't be undone.
Step-by-step explanation:
The statement is True. Cognitive dissonance is more likely to occur when the dissonant behavior is known to everyone, done voluntarily, and can't be undone. Cognitive dissonance refers to psychological discomfort arising from holding two or more inconsistent attitudes, behaviors, or cognitions. For example, if someone believes smoking is bad for their health but continues to smoke, they experience a conflict between their belief and behavior, leading to cognitive dissonance. To reduce cognitive dissonance, individuals can choose to change their behavior or change their belief in order to make them consistent with one another.