In a local community, a random sample of 18 couples has been assessed on a scale that measures the extent to which power and decision making are shared (lower scores) or monopolized by one party (higher scores) and on marital happiness (lower scores indicate lower levels of unhappiness). The couples were also classified by type of relationship: traditional (only the hus-

SOC SOC band works outside the home), dual-career (both parties work), and cohabitational (parties living together but not legally married, regardless of work patterns). Does decision making or happiness vary significantly by type of relationship?

a. Decision Making Traditional Dual-career Cohabitational 782 851 243 544 751 652

b. Happiness Traditional Dual-career Cohabitational 10 12 12 14 12 14 20 12 15 22 14 17 23 15 18 24 20 22