Table 4 shows the within-group association with eight attitudinal factors by the participants’ stated willingness to participate in genetic research. To ensure that we did not distort the structure of the original data through dichotomization of the item that assessed willingness to participate, we performed within-group linear regressions in which we regressed each factor on the original 4-point coded item. With the exception of a nonsignificant trend becoming significant for stigma among Whites, we obtained identical results; we therefore retained the dichotomized item for clarity and interpretability. As individual item scores could range from 1 (lowest) to 4 (highest), scores on a given factor could range from the number of items in that factor (lowest) to 4 times that number (highest). The scores shown in the table represent the average scores on each factor among those who stated that they would be willing to participate in genetic research (yes), and among those who stated that they would not be willing to participate (no). Factors on which the two groups’ scores differed significantly from each other are noted with asterisks. Blacks
