CBA is often computed by using the Pearson "R" correlation of each person's Likert scale judgments across a set of items against the mean of all people's judgments on those same items. The correlation is then a measure of that person's proximity to the consensus. It is also sometimes computed as a standardized deviation score from the consensus means of the groups. These two procedures are mathematically isomorphic. If culture is considered to be shared knowledge; and the mean of the group's ratings on a focused domain of knowledge is considered a measure of the cultural consensus in that domain; then both procedures assess CBA as a measure of an individual person's cultural understanding.