In this equation, a couple score is calculated by first finding the average between the
husband's and wife's individual scores. The partners' average discrepancy between their
scores is then found by taking the absolute value of the difference between the husband's
and wife's individual scores and dividing this by 2. This average discrepancy is then
multiplied by a constant (k), and the result is subtracted from the average of the
husband's and wife's individual scores to produce the couple score. To calculate the
couple score for task differentiation and role dissatisfaction, the formula was changed
slightly so the discrepancy was added to the average of the spouses' scores rather than
subtracted; this allows the couple scores to be more comparable to the task sharing and
role satisfaction scores traditionally derived from the "Who Does What?" where higher
scores indicate lower degrees of task sharing and satisfaction. Lavee and Olson specified
that k is a number higher than 0 but less than 1. If k is set at 0, the couple score is equal to
the average of the spouses' individual scores with no correction made to account for the
discrepancy between their scores. If k is set at 1, the couple score is equal to the
individual score of whichever spouse produced the lower individual score. In their study,
Lavee and Olson set k to equal .5 since this represents the midpoint between 0 and 1; the
present study also set k to .5 when calculating couple scores. With this equation, the
couple score always is equal to the average of spouses' scores when there is no
discrepancy between scores; the couple score also is lower than the average of spouses'
scores but higher than the lowest individual score when a discrepancy between spouses'
scores exists. Higher degrees of discrepancy between partners' scores result in couple
scores reflecting higher degrees of task differentiation and role dissatisfaction.