Warning: this is not going to be a juicy post, but
dry and statistical. A commenter the other day brought up the question of
whether adoptive parents or step-parents actually are more often abusive to
children than biological parents, as we have been told by “Cinderella” and
other stories. I went rummaging among the statistical reports and found a few
answers-- although not all that I was
looking for.
The U.S. Children’s Bureau publication Child Maltreatment in 2010 (http://www.acf.hhs.gov/programs/cb/stats_research/index.htm#can)
reported data from 51 states (including Puerto Rico and the District of
Columbia) about substantiated cases of child abuse and neglect. The data are
based on the definition used in the Child Abuse Prevention and Treatment Act
Reauthorization Act of 2010: “Any recent act or failure to act on the part of a
parent or caretaker which results in death, serious physical or emotional harm,
sexual abuse or exploitation; or an act or failure to act which presents an
imminent risk of serious harm”. [Interesting—I never realized before that this
definition omits to mention cognitive or educational harm.] Children who are
abused and neglected are most often exposed to a variety of difficulties, and
it is not necessarily possible to discriminate between actions that most of us
would call neglect (like poor diets) and those we’d usually call abuse (like
beating with an object). This makes it hard to decide which people are abusers,
but we have to recognize that the problem is a reflection of the real world
conditions, not of the data collection or analysis.
According to the Children’s Bureau report, there
were 436,321 substantiated reports of
child abuse and neglect in 2010. Of these, 78% focused on neglect, 17.6% on
physical abuse, and 9.2% on sexual abuse. It was not clear from this report how
each of these was associated with a particular group of perpetrators, but it’s
important to see that specific physical abuse was relatively infrequent---
these points should be kept in mind when looking at the rest of this post.
The Children’s Bureau report noted that parents
(including step-parents and adoptive parents, but not foster parents) were
responsible for 81.2% of the cases in the “duplicate count” (adults who were reported
more than once for mistreatment of a child). Of these cases involving parents,
0.7% were perpetrated by adoptive
parents, 84.2% by biological parents, 4.0% by step-parents, and 11.2% by
parents whose relationship to the child was not recorded.
These numbers suggest that biological parents were
by far the most frequent maltreaters, followed by the “unknown” group, with a
much smaller frequency of mistreatment by step-parents, and the adoptive parents
with a tiny proportion of cases. However, these numbers don’t tell the whole
story; we need to know the proportion of each of these kinds of parents in the
population, so we can look at rates of maltreatment and see whether each group accounts
for more or less abuse than its occurrence in the population would predict. If
there are many adoptive parents, we would expect many cases of maltreatment,
and if there are very few, we would expect very few cases. (We’ll have to leave
out the “unknown” group.)
A visit to the 2008 U.S. census, at www.census.gov/newsroom/releases/archives/children/cb08-30.html shows a total of 73 million children in the
United States. Of those, 61% lived with their biological mother and father, 8%
with at least one step-parent (I can’t explain what this means, sorry!), and 2
% with at least one adoptive parent. The difference between this total and 100%
is because I’ve omitted less frequent situations like living with grandparents
or being emancipated.
If child maltreatment was not associated with the
parent’s actual relationship to the child, we’d expect 61% of cases to be
perpetrated by biological parents, 8% to occur when there was a step-parent in
the house, and 2% to be carried out by adoptive parents. In fact, we see many
more cases of maltreatment by biological parents than we’d expect, and fewer by
step-parents and adoptive parents—in fact, only about half of the expected rate
by the last two groups. This result is much different from what is usually
reported about step-parent maltreatment, and contradicts the 1985 article that
originally stated that step-children are in unusual danger of abusive treatment
(Daly,M., & Wilson, M. [1985]. Child abuse and other risks of not living
with both parents. Ethology and Sociobiology, Vol. 6, pp. 197-210;
courses.washington.edu/evpsych/D&W-child-abuse-ESB1985.pdf).
What if we look at the 2010 report’s information
about child fatalities, as opposed to non-fatal neglect and abuse? The table
showing relationship of perpetrator to child does not show step-parents or
adoptive parents separately, but it does show deaths due to the actions of
mothers, of fathers, of mother and father, and of mother plus another or of
father plus another. It also shows deaths associated with a partner of the
mother or of the father. The proportion of child fatalities perpetrated by
mother or father plus another, or by a partner of one of the parents, still
amounts to less than 17% of the total--
but without information about the numbers of children living in each of
those situations, it’s hard to interpret exactly what this signifies. A
proportion of 17% is somewhat more than the 10% accounted for by the census
data for step-parents and adoptive parents, but may not be excessive when we
consider unmarried partners of parents too.
Have I made mistakes here? Or could it be that step-parents
have been maligned or have changed since the 1980s?