On Slate's DoubleX website, a columnist concluded from the study that "the feminist movement of the 1960s and 1970s gave us a steady stream of women's complaints disguised as manifestos and a brand of female sexual power so promiscuous that it celebrates everything from prostitution to nipple piercing as a feminist act -- in other words, whine, womyn, and thongs." Or as Phyllis Schlafly put it, more soberly: "[T]he feminist movement taught women to see themselves as victims of an oppressive patriarchy in which their true worth will never be recognized and any success is beyond their reach... [S]elf-imposed victimhood is not a recipe for happiness."
But it's a little too soon to blame Gloria Steinem for our dependence on SSRIs. For all the high-level head-scratching induced by the Stevenson and Wolfers study, hardly anyone has pointed out (1) that there are some issues with happiness studies in general, (2) that there are some reasons to doubt this study in particular, or (3) that, even if you take this study at face value, it has nothing at all to say about the impact of feminism on anyone's mood.
For starters, happiness is an inherently slippery thing to measure or define. Philosophers have debated what it is for centuries, and even if we were to define it simply as a greater frequency of positive feelings than negative ones, when we ask people if they are happy, we are asking them to arrive at some sort of average over many moods and moments. Maybe I was upset earlier in the day after I opened the bills, but then was cheered up by a call from a friend, so what am I really?
In one well-known psychological experiment, subjects were asked to answer a questionnaire on life satisfaction, but only after they had performed the apparently irrelevant task of photocopying a sheet of paper for the experimenter. For a randomly chosen half of the subjects, a dime had been left for them to find on the copy machine. As two economists summarize the results: "Reported satisfaction with life was raised substantially by the discovery of the coin on the copy machine -- clearly not an income effect."
As for the particular happiness study under discussion, the red flags start popping up as soon as you look at the data. Not to be anti-intellectual about it, but the raw data on how men and women respond to the survey reveal no discernible trend to the naked eyeball. Only by performing an occult statistical manipulation called "ordered probit estimates," do the authors manage to tease out any trend at all, and it is a tiny one: "Women were one percentage point less likely than men to say they were not too happy at the beginning of the sample ; by 2006 women were one percentage more likely to report being in this category." Differences of that magnitude would be stunning if you were measuring, for example, the speed of light under different physical circumstances, but when the subject is as elusive as happiness -- well, we are not talking about paradigm-shifting results.