In the aggregate, which are a bigger problem for society: flawed studies, or useless studies? An example of the latter: http://www.reuters.com/article/2012/03/29/us-postpartum-idUSBRE82S16N20120329 Postpartum Depression Tied to Domestic Violence Mothers with postpartum depression are more likely to be in a violent relationship than moms without depression, and new mothers in abusive relationships are more likely to suffer postpartum depression, according to a new survey of women with infants.