Bank Account Structure and Couples’ Relationship Dynamics Study 2, 2022

507 participants who identified as married and living in the United States were recruited from Prolific for this online study investigating the effect of bank account structure on relationship quality. The majority of participants were in different-gender couples (94.8%). Participants had been married an average of 15 years (range: less than 1 month to 55 years) and 70% had children. Participants’ median age was 40 (range: 21–78), and the median household income was $84,000 (range: $2,000–$1,300,000); 68% had earned at least a bachelor’s degree, and 85% identified as White or Caucasian. Refer to the OSF link under "Related Material" for additional descriptive statistics. Participants completed a 10-minute online survey about themselves, their marriage, and their finances. In randomized order, participants reported: whether they and their spouse had completely separate, partially merged, or completely merged checking and/or savings account(s); financial harmony; theirs and their spouse's communal and exchange norm adherence; financial communality within the marriage; financial goal alignment, transparency, and conversation frequency. This research was approved by Indiana University’s Institutional Review Board (# 1707369558).