In a 1974 study by Tversky and Kahneman, participants were given five seconds to give an intuitive estimation of the product of the numbers one to eight. The first group is presented with "1 x 2 x 3 x 4 x 5 x 6 x 7 x 8" and the second is shown the numbers in reverse order. The second group gives much higher answers as a whole (2,250 vs. 512). Which bias does this demonstrate? Anchoring Halo/horns effect Bandwagon bias Emerging preferences