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April 18, 1999
By David Murray
Moms everywhere, and especially those who struggle to make
ends meet while raising young kids, got some happy news last
month: Leaving their youngsters while they're on the job does
not shortchange child development.
This stunning news, so counter to myriad studies saying exactly
the opposite, has been widely noted by the media, no doubt eager
to report some "good" news after a year of sex scandals.
But is it accurate? Well, not really. The basis for this startling
conclusion was supposedly found in a study that appeared in the
academic journal Developmental Psychology. As the media shorthanded
it, the study, which evaluated the thought processes and behavior
of 6,000 children ages 3 to 12, purportedly showed that it doesn't
matter how early in a child's life a mother's absence begins
or whether moms are gone only a few hours a week or as many as
40. That is, the kids were all right even when mom wasn't there
at least according to the things psychologists can easily
assess. It seemed as if guilt could be banished forever.
Problem is, the individuals studied were not representative
of the population. The sample was heavily skewed toward mothers
who were young, poor and ill-educated. That means the findings
may not be applied with confidence to the wider American population.
These crucial methodological factors were duly noted by the
study's author, Elizabeth Hardy. "These results," she
said, "may not be generalized to older, higher [status]
parents." That qualification never made it into most news
accounts, yet it could not be more important to understanding
what's really going on here.
A key point is that many of the children evaluated may already
have been at risk for poor performance on cognitive and behavioral
tests because of the difficulties posed by their social and economic
deprivation. As a result, potentially negative effects of a mother's
absence may have been diminished.
Equally important is what was not studied. Because this survey
did not examine the type of day care children received in their
mother's absence, we can't gauge whether the lack of negative
effects might be a product of the alternative care provided by
day care, or by fathers or other family members. Once again,
the author herself scrupulously noted this limitation. But that
didn't prevent papers such as the Boston Herald, in a typical
reach, from headlining, "Working Moms Don't Spoil the Child
with Day Care."
Ironically, the absences of working moms may have even indirectly
helped their children, by providing additional income used to
enrich their environment. Again, Harvey recognized this factor,
and again most of the media ignored it. Needless to say, this
positive impact would likely be greatest for low-income families.
Further, studies overwhelmingly show that the most significant
factor in a child's behavior and well-being is the quality of
interactions with its mother. Research also shows that a mother's
cognitive abilities are important in determining this quality.
So the absence of culturally deprived moms may not have as great
an effect on a child's performance if the alternative care is
of higher quality than the mother can provide.
For many moms, outside work contributes to their well-being,
which studies show can offer collateral benefits for their children.
So what's the bottom line? Should moms worry when they leave
a young kid in someone else's care? To date, we simply don't
know. But rushing to say it doesn't matter, as the media have,
simply isn't supported by social science. There still is no more
important bond than that between a mother and child. Sometimes,
common sense makes sense.
David Murray is research director
for the Statistical Assessment Service
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