The SCIS also comprises a positive dyadic dimension
assessing the couple as an interactive unit: interactional synchrony.
As for the IDCS, trained raters used behavioral cues to
assess each partner on each individual dimension and to assess the
dyad on the dyadic dimension. The raters also used a 9-point scale
ranging from 1 (very low) to 5 (moderate) to 9 (very high).