Unbiased Decision-Making and the Halo Effect

"Don't judge a book by its cover" is an old adage for a good reason. 

Elegant book cover designs can create a positive impression and make you more likely to judge the writing quality more positively. But these traits—cover art and writing—are separate and distinct features of books. 

So why do we allow the judgment of one trait to spill over to another unrelated trait? 

In this episode of Choiceology with Katy Milkman, we look at a tendency to allow our judgments of one trait of a person (or product or company) to overly influence our judgments of another, unrelated trait of that same person or product or company. 

The Traitors is a popular reality TV show, where contestants are assigned either the role of a "Faithful" or "Traitor." Those selected as Traitors eliminate Faithfuls each night and try to keep their identity a secret so the Faithfuls don't vote to eliminate them. By the end of the game, over $100,000 is up for grabs for those left standing. But how can the Faithfuls sniff out the Traitors and decide whom to banish? How do people form judgments of others and decide whom to trust? Wilfred Webster was a contestant on The Traitors, Season 1, on the BBC and played the game brilliantly, leveraging the way he appeared to other contestants to make it to the end. 

Wilfred Webster is the runner up to The Traitors, Season 1, on the BBC. Before The Traitors, Will managed face-to-face fundraising for one of the largest charities in the U.K. Today, he's a content creator and fundraising consultant. 

Next, Katy speaks with Daniel Read about his research on how our evaluations of a person or product or company on a single trait can spill over and excessively influence our judgments of that same person or product or company on another, separate trait. You can learn more in Daniel's recent paper titled "CSR Halo: The Gift that Keeps on Giving?"

Daniel Read is a professor of behavioral science at Warwick Business School at The University of Warwick in the U.K. 

Choiceology is an original podcast from Charles Schwab. 

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Important Disclosures

The comments, views, and opinions expressed in the presentation are those of the speakers and do not necessarily represent the views of Charles Schwab.

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The book How to Change: The Science of Getting from Where You Are to Where You Want to Be is not affiliated with, sponsored by, or endorsed by Charles Schwab & Co., Inc. (CS&Co.). Charles Schwab & Co., Inc. (CS&Co.) has not reviewed the book and makes no representations about its content.

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