I found several problems with the article, and the conclusions of the study. Basic science says correlation != causation, but the study clearly set out with a

I found several problems with the article, and the conclusions of the study. Basic science says correlation != causation, but the study clearly set out with a specific bias in mind. Case in point, this quote: “We know that these problems have been endemic for decades now, and we’ve watched the maternal employment rate in the U.S. steadily erode relative to other countries.” A higher maternal employment rate is now a yardstick for societal health? If that's not evidence of a clear bias on the part of the researchers I don't know what is. The personal fulfillment and societal value of working moms vs stay-at-home moms is a matter that can be debated, but to display such clear bias toward the latter as the 'correct' option makes one question all of the study's conclusions.