Post group closeness variables for the face-to-face component of 2000 respondents (even-numbered variables V001540-V001572) duplicated for all groups the data that correctly corresponded only to the first group. Marginals in the codebook have been updated accordingly. In addition to this correction, the group closeness variables for the telephone component have been renumbered to odd-numbered variables V001541 through V001573 (these were previously numbered as variables V001540a, V001542a, V001544a etc.). This renumbering was effected because the summary variables which previously existed as odd-numbered variables V001541-V001573 have been dropped. The group summary variables were removed to emphasize the differences between FTF and telphone mode administration, and to avoid implication to users of close comparability.