This study reports on the development of the Dyadic Adjustment Scale, a new measure for assessing the quality of marriage and other similar dyads. This factor analytic study suggests four empirically verified components of dyadic adjustment to be used as subscales (dyadic satisfaction, dyadic cohesion, dyadic consensus and affectional expression). Paper presented at the annual meeting of the National Council on Family Relations, August, 1975, Salt Lake City, Utah. (Author)