This is the research companion to The Background Job. Read the main post first.
The main post argued that the thinking behind every household chore (anticipating, working out the options, deciding, checking) is real labor, that it costs the person who carries it, but that what reaches children is a separate question with its own evidence. Here's what that rests on. Three sources describe the mental load and what it's linked to in the adults carrying it. Two describe how the adults raising a child work together and what that's linked to in the child. We don't know of a study that connects the first set to the second, and none has tested a way to shift the mental load, which is the biggest gap in everything below. Most samples are partnered, educated and mostly white.
Four Jobs, Named
Daminger, A. (2019). The cognitive dimension of household labor. American Sociological Review, 84(4), 609-633.
DOI: 10.1177/0003122419859007
What they found: In 70 interviews with 35 couples (plus 57 decision logs), the thinking side of household labor broke into four components, which the author calls anticipation, identification (of options), decision-making and monitoring. Women led overall in 26 of the 32 different-sex couples, leading an average of 4.6 of nine household domains to men's 1.6. The gap was widest in anticipation (female-led in 26 couples) and monitoring (21), while decision-making was shared in 28. Four of the nine wives who out-earned their husbands still carried more.
Why this matters for you: It gives you a vocabulary for what usually goes unnamed. When one partner says "I do half of everything" and the other feels like the household runs through their head, they may both be describing the decision accurately and missing the noticing and the checking on either side of it.
What it doesn't answer: It's a qualitative study of college-educated, married, Boston-area couples with a child under five and a median household income around $163,000, so it can't measure how much load anyone carries or say what the load does to anyone. The author describes the costs as hypothesized, not demonstrated, and leaves open whether the pattern holds outside middle-class, white, different-sex couples. Recruiting both partners may have favored couples who get along.
Planning Versus Doing
Aviv, E., Waizman, Y., Kim, E., Liu, J., Rodsky, E., & Saxbe, D. (2024). Cognitive household labor: Gender disparities and consequences for maternal mental health and wellbeing. Archives of Women's Mental Health, 28(1), 5-14.
DOI: 10.1007/s00737-024-01490-w
What they found: In a preregistered survey of 322 mothers whose children were about three, mothers rated who plans and who does each of 30 household tasks. They reported holding about 73 percent of the planning and 64 percent of the doing. A larger share of the planning was linked with more depressive symptoms, stress and burnout, poorer overall mental health and lower relationship quality. A larger share of the doing was linked only with poorer relationship functioning. Many of the most lopsided tasks were about the children, such as healthcare and school bags.
Why this matters for you: It's the clearest evidence behind the main post's point that the planning, more than the chores, is where the strain shows up for the person carrying it.
What it doesn't answer: It's one moment in time, in mothers' own words, with no partner report and a task measure that hasn't been validated, so it can't say whether the planning wears mothers down or worn-down mothers see their share as bigger. The sample was 81 percent white, 59 percent held a graduate degree, and a third had household incomes above $150,000; the authors expect larger gaps in lower-income families. No children were measured. One co-author, Eve Rodsky, created the Fair Play card system the task list was adapted from. Published online in 2024, the article appears in the journal's 2025 volume.
Two Kinds of Load, and Who Sees Them
Weeks, A. C., & Ruppanner, L. (2025). A typology of US parents' mental loads: Core and episodic cognitive labor. Journal of Marriage and Family, 87(3), 966-989.
DOI: 10.1111/jomf.13057
What they found: In a sample of 3,000 US parents matched to Census benchmarks, the mental load split into two kinds. A daily kind (cleaning, scheduling, childcare, social relationships, food) was mostly carried by mothers, who said "mostly me" for 79 percent of those tasks on average, against fathers' 37 percent. An occasional kind (maintenance, finances) leaned toward fathers. Both parents rated their own total share higher than their task-by-task answers implied, fathers by about 16 percentage points and mothers by about 7. Among the 460 single parents, the two kinds didn't separate at all; it was one load.
Why this matters for you: It's behind two parts of the main post. The daily load is where the gap is widest, which is why the Try This starts there. And the single-parent finding is why we didn't hand single caregivers advice about splitting things with a partner.
What it doesn't answer: It's an online quota panel at a single point in time, with each task coded as "mostly me" or not, so it describes structure rather than amounts or change. It measured no wellbeing and no child outcomes, and it left out the emotional side of the mental load. The authors' explanation for the overestimates (each parent sees the whole through their own tasks) is their interpretation, not something they tested.
How the Adults Work Together
Teubert, D., & Pinquart, M. (2010). The association between coparenting and child adjustment: A meta-analysis. Parenting: Science and Practice, 10(4), 286-307.
DOI: 10.1080/15295192.2010.492040
What they found: Pooling 59 studies of 10,824 families, with children from infancy to about 16, cooperation and agreement between parents were linked with fewer internalizing problems (worry, sadness, withdrawal) and externalizing problems (acting out), and conflict and triangulation (drawing the child into the parents' disputes) with more. Correlations ran from roughly .09 to .24. The links held after accounting for each parent's own parenting style and, for internalizing and externalizing, for the quality of the marriage. Lower family income strengthened the link between triangulation and acting out.
Why this matters for you: This is the child side of the main post. How the adults raising a child back each other up, or don't, is linked to how the child is doing, over and above how happy the couple is.
What it doesn't answer: The effects are small, explaining roughly 1 to 6 percent of the differences between children, and only 9 of the 59 studies tested whether coparenting predicted change over time. Most samples were married and relatively well off, and the authors caution against generalizing to single-parent, separated, non-Western or clinical families. It says nothing about who carries the mental load.
Less Competition, Not More Warmth
Solmeyer, A. R., Feinberg, M. E., Coffman, D. L., & Jones, D. E. (2014). The effects of the Family Foundations prevention program on coparenting and child adjustment: A mediation analysis. Prevention Science, 15(2), 213-223.
DOI: 10.1007/s11121-013-0366-x
What they found: In a trial that randomly assigned 169 first-time expectant couples to a brief coparenting program or a control group, the program lowered observed competition between parents (jockeying and undermining) when children were one, and lower competition went with fewer observed adjustment problems at three. That pathway accounted for about 55 percent of the program's effect for fathers and 39 percent for mothers of sons. Coparenting positivity didn't carry the effect for any parent or child.
Why this matters for you: It points at the specific piece of teamwork with the best evidence behind it. Undercutting each other in front of the child mattered more here than how warm the parents were with each other.
What it doesn't answer: The program was randomized, but the step from less competition to fewer child problems was not, so that link is still an association. The pathway didn't hold for mothers of daughters, the outcome leaned toward acting-out behavior, and the couples were mostly married, white and working to middle class. It's one program from one research group. And a 2021 meta-analysis of coparenting programs found that their pooled effect on child adjustment wasn't statistically significant, so this is a promising lead, not a proven route. Like the review above, it says nothing about the mental load.
Coming Up
Why Does She Get To? Every family with more than one kid runs uneven deals. We look at what children make of those deals, why fair and explained may matter more than equal, and where ordinary rivalry ends and cruelty begins.
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