10 Leisure Cookers To calculate the Top 10 Brand Movers list, YouGov compared statistically significant score increases across a range of metrics which include factors such as ad awareness, conversation about the brand, and if a consumer had heard any news about the brand in the last two weeks. YouGov's Biggest Brand Movers in Mayl YouGov reports that Lipton Ice Tea witnessed spikes in a range of media metrics including word of mouth), Brand Health metrics including satisfaction, and the ‘Current Customer’ metric, which measures whether a consumer has purchased a given product or not within a specified period of time. While the brand has recently added two new caffeine-free products to its line-up, YouGov said some of these recent spikes may be cyclical, as the brand registered an uplift across some metrics in Spring of last year.