A dumping effect occurs when panelists perceive an attribute which they are
not asked to rate, and express it on a scale intended for another attribute
(Lawless and Heymann 1998). Based on the significant thickness differences
observation in experiment 11, we know the samples with oil were slightly thicker
than the oil-free samples. Since we asked panelists to rate only taste intensity in
experiment I, they may have expressed this thickness difference by dumping
their thickness perception into their taste intensity ratings