Fig. 1

To illustrate the possible scoring of items, the calculated raw points on the basis of expert responses (bold numeral above the columns) in four selected items are shown tabular and graphic. In a and b, the expert mode is located either on the left or the right end of the scale. In c, the mode is in the middle of the scale, the expert answer are distributed around it. Note that, no points in the AGG scale are achieved in channels that were not selected by any expert. d shown an example of an item with more than one mode. In this case, the SBA could not be calculated