Which psychological principle best explains why Jennifer Aniston's long-term endorsement of Smartwater has been particularly effective for the brand?

In today's consumer landscape, celebrities wield enormous influence over purchasing decisions. This poll explores the fascinating intersection of famous personalities and consumer psychology, revealing how star power translates to brand loyalty and purchasing behavior. Test your knowledge about the science behind celebrity endorsements and how companies leverage famous faces to connect with consumers on a psychological level.

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The Halo Effect - consumers transfer positive feelings about Aniston to the product
The Scarcity Principle - Aniston's limited appearances create perceived value
The Reciprocity Effect - consumers feel obligated to purchase after seeing Aniston use it
The Bandwagon Effect - people buy because they believe everyone else is buying it