44

I'm just providing the numbers. No claim about the cause can be made. Shapiro is claiming an increase from a low rate (by today's standards) in the early sixties up to a high rate today, while MLK states pre-sixties that it was already high compared to whites. I'd say both are correct. The trends for one vs two parent families has been basically the same ...


34

I'm looking for a brief historical analysis on the "illegitimacy rates" in the black community Tldr; The rate for non-whites was ~21% in 1960 and 72% for blacks in 1998. The figures and references are below. Did the single motherhood rate jump to 70% since the 1960s? It has risen beyond 70% according to the CDC. This data was published by the CDC ...


12

Just to complement @Schwern's excellent answer, and similarly not attempting make any claims about cause, I note that Shapiro is talking about single parents (which @Schwern's answer addresses), whereas King is talking about "illegitimacy", that is, births to parents who are unmarried (although may still live in a 2 parent household). The following ...


12

The article directly links the papers abstract which in turn links the full paper. Both of which are always really nice. What population does it apply to? Subjective well-being levels over the period of having a first child. We measure levels of subjective well-being over the transition to parenthood, measured from two years before a child is born ...


8

Quoting from the "Effect of Shaking on Lipolysis of Cow's Milk" Journal of Dairy Science Volume 21, Issue 11, November 1938, Pages 671–682 (emphasis added): Eufinger (10) showed that the titratable acidity of human milk increased several fold upon shaking for a few hours, and that the increase was associated with the presence of fat since the acidity did ...


8

I guess you cannot spoil someone who is not able to anticipate that if he cries the care-giver will come to help. I've read from different sources that this developmental milestone is achieved when babies are 9-12 months, eg. here: http://www.cde.ca.gov/sp/cd/re/itf09cogdevfdcae.asp The reference given is Lerner & Ciervo 2003. My guess is that it refers ...


5

Something notably absent from other answers (so far) has been data on the ratio of cohabiting parents. This Pew Research article using 2017 data (not long after Shapiro's comments) shows a total single-parent rate for Black families of 51%, with 43% having two parents (36% married and 7% cohabiting). The highest accurate representation of children living ...


4

In scientific research, it's important to build up a body of evidence before we can draw conclusions. Once we have enough studies, if we see that a few find a real effect of birth order on personality but the majority find no effect, then we should probably abandon the theory of birth order and focus on other things that can affect personality. A quick ...


3

(a) Research in co-sleeping reveals that it may reduce stress in children. Children who had coslept in their parent's room had lower cortisol levels, as did children who had attended less daycare in the first 4 years of life Waynforth 2007. An early history of co-sleeping contributes positively to cortisol regulation in 12-month-olds and after controlling ...


3

There is a comprehensive review of the literature regarding the best time to introduce solids to infants. Using the available information on the development of infant’s immunologic, gastrointestinal and oral motor function, as well as maternal reproductive physiology, the expert review team concluded that the probable age of readiness for most full ...


3

From Cannabis use while Breastfeeding, an article on drugs.com: Although published data are limited, it appears that active components of marijuana are excreted into breastmilk in small quantities. Data are from random breastmilk screening rather than controlled studies because of ethical considerations in administering marijuana to nursing ...


2

Do the unpleasing side effects of a cigarette out weigh the chemical response of pleasure induced from smoking? A few important links stated by the research of the U.S. government. One statement tells us: Research has shown how nicotine acts on the brain to produce a number of effects. Of primary importance to its addictive nature are findings that ...


2

There are a few individual case studies that seem to suggest it's difficult but possible. They're far from perfect as evidence since they're self reported, but there's one case of a woman in Australia which is sufficiently detailed, seems to be independent of groups with a direct interest in advocating the technique, and contains enough caveats on the ...


1

Estimates of 10 per cent to 30 per cent non-paternity rates are massively inflated figures which contribute to the myth of high misattributed paternity. The number of children whose biological father isn’t their social dad is probably far smaller than you’ve been led to believe, although the 30% figure seems to be a zombie-statistic that refuses to die. ...


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