A study was undertaken in Washington state to investigate voting behavior on the Equal Rights Amendment (ERA), which was approved by Washington state voters in 1972. Specifically, research objectives were to determine who was for or against the ERA, to assess the nature of objections to the ERA, and to consider implications of the ERA for family relationships. A random sample of over 800 Washington state residents was interviewed by telephone in December 1972. Information was obtained on respondents' age, sex, marital status, occupation, education, family size, political and religious affiliation, and vote (or attitude) regarding the ERA. Findings indicated that men were more favorable toward the ERA than women; single and divorced respondents were more favorable than were married respondents; young were more favorable than old; white collar workers were more favorable than blue collar workers; and individuals with more education were more favorable than those with less education. Favorable decisions regarding the ERA appeared to be influenced by psychological variables (attitudes, values, self-concept) and by situational factors such as responsibilities of women and men in the home and outside employment. Additional research is suggested on the unequal division of labor in the home as an obstacle to sex equality and as a major reason for women's opposition to the ERA. (DB)