Final answer:
The statement that the Uncertainty Avoidance Index (UAI) focuses on assertiveness and achievement is false. UAI actually measures how comfortable a culture is with uncertainty and is not directly related to assertiveness or achievement.
Step-by-step explanation:
The Uncertainty Avoidance Index (UAI), identified by Geert Hofstede, does not focus on assertiveness and achievement. Instead, it measures the extent to which people in a culture feel threatened by ambiguous or unknown situations. This cultural dimension can influence how societies create beliefs, institutions, and rituals that attempt to avoid these uncertain scenarios. Assertiveness and achievement are not the primary focus of UAI; rather, it deals with society's tolerance for uncertainty and ambiguity.