Editor's note: This article appeared in the October 26, 2009, edition of Quirk's e-newsletter.

A trend has emerged in multicultural research showing that Hispanics rate certain products higher than non-Hispanics simply because they are Hispanic. The phenomenon is known as cultural lift, and it can be taken into account to improve the accuracy of results when conducting preference testing. According to Savitz Research Companies, Dallas, Hispanics gave 5.9 percent higher average ratings than non-Hispanics in the U.S. on a zero-to-100-point scale, even though high product ratings often didn't translate to a rise in sales and usage.

It has been thought that cultural influences may make Hispanics more reluctant to provide negative or impolite feedback. When evaluating soft drinks, for example, Hispanics rated Pepsi 80.8, while non-Hispanics rated it 74.8, making it appear that Hispanics like Pepsi more and would be a better target. Ratings for 7-Up were essentially the same, at 73 for Hispanics and 73.7 for non-Hispanics. When asked to rate Fanta, a drink which Hispanics are known to prefer, Hispanics gave a rating of 80, compared to a 57.6 rating by non-Hispanics. After the 5.9-point adjustment of the Hispanic ratings to remove the cultural bias, Hispanics and the general population actually feel about the same about Pepsi, non-Hispanics prefer 7-Up and Hispanics still definitely like Fanta more than non-Hispanics.