Language, Bilingualism, and Kids

Emily Oster

9 min Read Emily Oster

Emily Oster

Language, Bilingualism, and Kids

"How You Say It" with Katie Kinzler

Emily Oster

9 min Read

I left Chicago in 2014 to move to Brown and there were many wonderful things about that move, but one that was sad was leaving my set of mom friends: Jane, Elena, Katie and Heather. There is something about the crucible of having had babies at the same time that you can never replicate. The people who saw you with breastmilk and sweat stains everywhere; the people who brought you food and held your baby while you took a shower; the people who visited you in the NICU. I miss them all the time.

Many of these women make appearances in Expecting Better, including Katie Kinzler, who very alert readers may recall as the person who asked about Hot Yoga safety. When she is not engaging in hot yoga, Katie is a Professor of Psychology at the University of Chicago. Her work is mostly with young kids, and it’s totally fascinating as both a researcher and a parent.

In particular, she works on issues around language: how kids process foreign language speakers, and basic issues of language and identity. She also works on kids and food, although that’s not the topic here!

For many years I have been after Katie to write a book, so I am delighted that she did it, and it’s out tomorrow. How You Say It (Buy it Here!) is about how we talk, what it says about us, about bias and racial cues and bilingualism. It’s exactly the book I wanted from her. So I thought I’d check in with her about why she wrote it (and also take the chance to ask whether social isolation is bad for my kids.) Check out our conversation below.


Emily:

I’m excited to talk about your book.  Let me start with a general question: why did you decide to write this?  You’re a professor at Chicago and writing books for popular audience is not the most common Professor thing to do.  I realize it’s a bit of a rich question coming from me but… what motivated you to do this?

Katie:

Thanks so much for doing this Q&A, and thanks for asking this question.  I wrote this book because I’ve become completely convinced that it is urgent for experts to get out there in the world and share their knowledge.  Most days I think that the academy is (mostly) coming around to this, too!

My research as a developmental and social psychologist shows how kids see language as providing this incredible amount of social meaning.  But, a lot of the relevant literature is in neighboring fields – sociolinguistics and psycholinguistics, anthropology, education, law; among others.  So at first, I thought about writing a book that was just geared toward academics, uniting these fields.

But I quickly realized that the issues I am touching on are so personal for so many people’s lives.  Issues such as how language becomes critical for your identity, your social connections, your morality – and when and why people discriminate against others based on their speech. So, I wanted to think broader than just academics and have a dialogue with people.

And, the following is going to sound cheesy because I am writing this in your newsletter – though I swear you did not ask me to say this, and I don’t believe I’ve ever actually told you this – Emily, you were a bit inspirational. J

I remember a moment when my daughter Taylor was a baby, and my husband and I talked to a speech language pathologist.  We were exposing Taylor to two languages (English and French).  As you know, she was born early (but fortunately healthy, and today she is an amazing 6-year-old).  At the time, the advice we got was to consider just exposing her to English.  The idea was if your kid has a risk of a language delay, it may be better to just focus on one language.

This advice feels kind of intuitive to hear, but it is also unsubstantiated.  In fact, research shows that kids of all different abilities can learn more than one language.

At the time I was in the midst of working on research showing that just being exposed to a foreign language can have social benefits for kids, and I felt that bilingualism was the right choice for my family.  And I thought to myself, “hmm if Emily were here, she would probably dig in to the research and share her insight with the world!”

Emily:

So, who is your audience? Who should read this book — parents who are interested in bilingual kids? teachers? Researchers? Everyone?

Katie:

Well if I get to pick “everyone,” I’ll go with that!

In all seriousness, I think language is personal to a lot of people.  The way you speak can give you insight into who you are and who other people are too.  It can cause people to connect, but it can also cause them to discriminate and divide.  Yet, we aren’t always aware of the importance of language for our lives and the lives of others.  We are especially unaware of the social consequences of speaking in what is seen by others as a stigmatized or non-standard dialect.  Speech impacts people’s social connections and economic opportunities in life and we need to become more aware of this.

Another aspect of the book is how social biases are inadvertently transmitted to kids via our language, which a lot of parents are interested in learning about and trying to correct where they can.

Emily:

Let’s talk a bit about kids and language.  First, tell me about the monolingual myth.  Scientists used to think bilingualism was bad for kids.  Why?  What changed?

Katie:

They did!  Many people have historically (and sometimes still today) had a nervousness about bilingualism.  The idea is often something along the lines of the following:  if you see the brain as a limited vessel, you may be worried that if you learn another language you are kind of crowding out other knowledge.  Therefore, if you are a parent who really prioritizes the “important” kinds of learning for your kid – like math or reading — then you worry that having your kid learn another language might present a risk.  Maybe it just won’t fit in your kid’s brain.  But, of course, this is not how language learning or the brain works.  Kids can learn two languages AND math, reading, and all the rest, all at once!

In the first half of the 20th century there were a bunch of “scientific” studies purporting to find that kids who were learning two languages were less intelligent than the monolingual kids.  But, these studies were flawed.  Basically they revealed some racism and xenophobia – where researchers were testing whether immigrant populations were “less intelligent” than those who had been native to the (predominantly white, English-speaking) countries.

Modern science sets the record straight that there is no cognitive handicap caused by learning multiple languages – and if anything, current-day research hints at potential benefits of multilingual exposure.

Emily:

On the flip side, many people now want to expose their kids to many languages.  What if you want to do this but your family only speaks English. Is there anything you can do?  Would sending your toddler to French class once a week matter?

A little bit of exposure can be a great thing!  Though it doesn’t have to be French, and it certainly doesn’t have to be in a formal “class.”  Any exposure to people who speak in different ways can be a positive for children’s development.

Imagine the cognitive and social intrigue of being a bilingual child.  You think about who knows what, and who speaks what to whom, and who understands what content.  You might think “Oh, Grandma speaks this way and Dad but not Mom understands.”  Or “We speak English at school and Spanish at home.”  Or, “I understand this relative, and so do my parents, but my best friends have this other language and understanding.”  Or “We all understand these two languages, but we use them in different spaces.”  And so on.  Basically, whatever your situation is you get this huge training in “perspective taking.”  Monolingual kids miss out on this particular facet of social life experience.

Some of my research and that of others shows that when kids get this practice in linguistic perspective taking by being exposed to more than one language, it spills over into other domains.  They become better at perspective taking more generally, which is a hallmark of effective communication and interpersonal understanding.  And these benefits accrue even if the children are only exposed to another language and are not bilingual themselves.

Katie:

For me, some of the most fascinating discussion in the book is on stereotypes and biases. What are some common ways in which we express bias in daily language that we might not realize?

One thing I think a lot about is how unaware we are of linguistic biases – both as parents and as a society.  The fact that we (and children!) judge each other based on our speech just isn’t on our radar to the extent it should be.

Another thing parents may want to know more about is the way the words we use can inadvertently convey biases to kids.  This could either be about learning about a new social category of people that kids haven’t thought of before (and the prejudices that can come along with that), or it could be about increasing the salience of a category that kids already think about.

One example is about how language inadvertently influences gender bias.  The general idea is that when we constantly label gender – “Boys and girls line up;” “Oh what a nice little boy;” “You’re the only girl cousin!” – this has an impact.  It’s not to say we can never talk about gender.  However, when kids hear language about gender all day every day, they start to think, “Oh ok – this must be *the* most important category, since adults are talking about it all the time!”  And then they start becoming more likely to look for stereotypes about gender in their social worlds.

Though, there is some nuance.  I’m not saying never talk about gender, or other categories.  Especially in the case of race, it’s also important to know that “colorblind parenting” is not the answer.  Pretending that race doesn’t exist, in an environment steeped in structural racism, doesn’t work.  Kids are like intelligent cultural sponges who absorb the world around them, and in today’s racist society they will notice race whether or not you talk about it.  So, you need to talk about race.  But you want to do so in a way that provides context and explanation, and not just category labels.

Emily:

And finally: Going a little outside of your book – but since you’re a developmental psychology expert – what are your views on how social isolation impacts kids?  Can you give parents a note of optimism?  

Katie:

I’m not feeling super optimistic these days, probably like many of you.  But, while it may not quite be a note of optimism, I do have a  tidbit for parents about their children’s social isolation that may help in some small ways.

I’ll share an anecdote, and why I think it illustrations something scientifically important.

The anecdote: What was one of the most upsetting aspects of the social isolation for my daughter?  All the normal social isolation stuff, not seeing friends or family, living with stressed out parents, etc.?  Sure.  But what was *really* upsetting was the day that she found out that a bunch of her Kindergarten friends had a Zoom dance party without her.  So small, but so painful, right?

The science:  Humans are incredibly attuned to social rejection and loneliness.  Being excluded feels terrible, and social pain shares a lot of the same neural signatures as physical pain.  But it turns out that a lot of our social feelings exist in our minds, and not always in reality.  What I mean by that is that one person could be physically alone, and feel connected. Someone else could be surrounded by friends and family, and feel lonely and isolated.  Furthermore, a lot of your thinking about your social lives is comparative with others – so if you feel like you are as socially connected as other people are, this feels good.

In a virtual world, as my daughter experienced, you can still feel rejected.  Yet more generally, your kids can be home and socially isolated, yet appreciate that it is not because they are rejected.   So even if kids’ social contact is minimal, parents can aim to do whatever they can to make kids feel “part of a group.” If kids know that their feelings and experiences are just like those of the other kids, this can help.  As a result, children may be socially isolated, but they may not necessarily feel as lonely as they would otherwise.

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New AAP Guidelines on Childhood Obesity

What does the data tell us?

Emily Oster

Instagram

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The AAP’s guidelines recommend sleeping in the same room as your baby “ideally for the first six months.” However, the risk of SIDS is dramatically lower after four months, and the evidence in favor of the protective effect of room sharing is quite weak (both overall and even more so after four months). There is also growing evidence that infants who sleep in their own room by four months sleep better at four months, better at nine months, and even better at 30 months.

With this in mind, it’s worth asking why this recommendation continues at all — or at least why the AAP doesn’t push it back to four months. They say decreased arousals from sleep are linked to SIDS, which could mean that babies sleeping in their own room is risky. But this link is extremely indirect, and they do not show direct evidence to support it.

According to the data we have, parents should sleep in the same room as a baby for as long as it works for them! Sharing a room with a child may have negative impacts on both child and adult sleep. We should give families more help in navigating these trade-offs and making the decisions that work best for them.

#emilyoster #parentdata #roomsharing #sids #parentingguide

The AAP’s guidelines recommend sleeping in the same room as your baby “ideally for the first six months.” However, the risk of SIDS is dramatically lower after four months, and the evidence in favor of the protective effect of room sharing is quite weak (both overall and even more so after four months). There is also growing evidence that infants who sleep in their own room by four months sleep better at four months, better at nine months, and even better at 30 months.

With this in mind, it’s worth asking why this recommendation continues at all — or at least why the AAP doesn’t push it back to four months. They say decreased arousals from sleep are linked to SIDS, which could mean that babies sleeping in their own room is risky. But this link is extremely indirect, and they do not show direct evidence to support it.

According to the data we have, parents should sleep in the same room as a baby for as long as it works for them! Sharing a room with a child may have negative impacts on both child and adult sleep. We should give families more help in navigating these trade-offs and making the decisions that work best for them.

#emilyoster #parentdata #roomsharing #sids #parentingguide
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It was an absolute pleasure to be featured on the @tamronhallshow! We talked about all things data-driven parenting and, in this clip, what I call the plague of secret parenting. To balance having a career and having a family, we can’t hide the fact that we’re parents. If mothers and fathers at the top can speak more openly about child-care obligations, it will help us all set a new precedent.

Watch the full segment at the link in my bio 🔗

#tamronhall #tamronhallshow #emilyoster #parentingsupport #workingparents

It was an absolute pleasure to be featured on the @tamronhallshow! We talked about all things data-driven parenting and, in this clip, what I call the plague of secret parenting. To balance having a career and having a family, we can’t hide the fact that we’re parents. If mothers and fathers at the top can speak more openly about child-care obligations, it will help us all set a new precedent.

Watch the full segment at the link in my bio 🔗

#tamronhall #tamronhallshow #emilyoster #parentingsupport #workingparents
...

Invisible labor. It’s the work — in our households especially — that has to happen but that no one sees. It’s making the doctor’s appointment, ensuring birthday cards are purchased, remembering the milk.

My guest on this episode, @everodsky, has come up with a solution here, or at least a way for us to recognize the problem and make our own solutions. I’ve wanted to speak with Eve for ages, since I read her book Fair Play. We had a great conversation about the division of household labor, one I think you’ll get a lot out of!

Listen and subscribe to ParentData with Emily Oster in your favorite podcast app 🎧

#emilyoster #parentdata #parentdatapodcast #parentingpodcast #householdtips #fairplay #invisiblelabor

Invisible labor. It’s the work — in our households especially — that has to happen but that no one sees. It’s making the doctor’s appointment, ensuring birthday cards are purchased, remembering the milk.

My guest on this episode, @everodsky, has come up with a solution here, or at least a way for us to recognize the problem and make our own solutions. I’ve wanted to speak with Eve for ages, since I read her book Fair Play. We had a great conversation about the division of household labor, one I think you’ll get a lot out of!

Listen and subscribe to ParentData with Emily Oster in your favorite podcast app 🎧

#emilyoster #parentdata #parentdatapodcast #parentingpodcast #householdtips #fairplay #invisiblelabor
...

Prenatal vitamins 💊 If there is any product that seems designed to prey on our fears, it’s this one. You’re newly pregnant and you want to do it right. Everyone agrees you need prenatal vitamins, so you get them. But do you want to be that person who just… buys the generic prenatal vitamins?

Good news: fancier vitamins are not better.  Folic acid is the most important prenatal ingredient. Iron (with vitamin C) and DHA are also nice to have. Other included ingredients have only weak or no evidence to support their use. (If you do not consume animal products, add B12, plus a few others depending on your diet.)

Vitamins are just vitamins. Any prenatal vitamin that contains these is enough. 

Comment “Link” for a DM to an article with everything you need to know about prenatal vitamins.

#emilyoster #parentdata #prenatalvitamins #pregnancydiet #pregnancytips

Prenatal vitamins 💊 If there is any product that seems designed to prey on our fears, it’s this one. You’re newly pregnant and you want to do it right. Everyone agrees you need prenatal vitamins, so you get them. But do you want to be that person who just… buys the generic prenatal vitamins?

Good news: fancier vitamins are not better. Folic acid is the most important prenatal ingredient. Iron (with vitamin C) and DHA are also nice to have. Other included ingredients have only weak or no evidence to support their use. (If you do not consume animal products, add B12, plus a few others depending on your diet.)

Vitamins are just vitamins. Any prenatal vitamin that contains these is enough.

Comment “Link” for a DM to an article with everything you need to know about prenatal vitamins.

#emilyoster #parentdata #prenatalvitamins #pregnancydiet #pregnancytips
...

When it comes to introducing your newborn to the world, timing matters. It’s a good idea to minimize germ exposure in the first 6-8 weeks; after that, it’s inevitable and, very likely, a good idea! This doesn’t mean you need to be trapped inside. The most significant exposure risks are from seeing other people at home — family, etc. These interactions are not infinitely risky, but they do pose more risk than a walk or a trip to the grocery store, since they involve closer interaction. Think simple and make sure everyone is washing their hands before holding the baby. 💛

#parentdata #emilyoster #newborncare #parentingadvice #parentingtips

When it comes to introducing your newborn to the world, timing matters. It’s a good idea to minimize germ exposure in the first 6-8 weeks; after that, it’s inevitable and, very likely, a good idea! This doesn’t mean you need to be trapped inside. The most significant exposure risks are from seeing other people at home — family, etc. These interactions are not infinitely risky, but they do pose more risk than a walk or a trip to the grocery store, since they involve closer interaction. Think simple and make sure everyone is washing their hands before holding the baby. 💛

#parentdata #emilyoster #newborncare #parentingadvice #parentingtips
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The first edition of Hot Flash is out now! Comment “Link” for a DM to learn more about the late-reproductive stage.

There are times when we expect hormonal shifts. Our reproductive lives are bookended by puberty and menopause. We discuss those changes often because they are definitive and dramatic — a first period is something many of us remember clearly. But between ages 13 and 53, our hormones are changing in more subtle ways. During the late-reproductive stage (in your 40s), you can expect a lot of changes in your menstrual cycle, including the length and symptoms you experience throughout. It’s an important time in our lives that is often overlooked!

🔥 Hot Flash from ParentData is a weekly newsletter on navigating your health and hormones in the post-reproductive years. Written by Dr. Gillian Goddard, Hot Flash provides all of the information you need to have a productive, evidence-based conversation about hormonal health with your doctor.

#emilyoster #parentdata #hotflash #perimenopause #womenshealth

The first edition of Hot Flash is out now! Comment “Link” for a DM to learn more about the late-reproductive stage.

There are times when we expect hormonal shifts. Our reproductive lives are bookended by puberty and menopause. We discuss those changes often because they are definitive and dramatic — a first period is something many of us remember clearly. But between ages 13 and 53, our hormones are changing in more subtle ways. During the late-reproductive stage (in your 40s), you can expect a lot of changes in your menstrual cycle, including the length and symptoms you experience throughout. It’s an important time in our lives that is often overlooked!

🔥 Hot Flash from ParentData is a weekly newsletter on navigating your health and hormones in the post-reproductive years. Written by Dr. Gillian Goddard, Hot Flash provides all of the information you need to have a productive, evidence-based conversation about hormonal health with your doctor.

#emilyoster #parentdata #hotflash #perimenopause #womenshealth
...

There are plenty of reels telling you how to parent. Plenty of panic headlines saying that “studies show” what’s best for your kid. Even good data, from a trusted source, can send us into a spiral of comparison. But I want you to remember that no one knows your kid better than you. It’s important to absorb the research, but only you will know the approach that works best for you and your child. 💙

Now tell me in the comments: what’s a parenting move you’ve made recently that feels right to you?

#parentingcommunity #parentingsupport #parentingquotes #emilyoster #parentdata

There are plenty of reels telling you how to parent. Plenty of panic headlines saying that “studies show” what’s best for your kid. Even good data, from a trusted source, can send us into a spiral of comparison. But I want you to remember that no one knows your kid better than you. It’s important to absorb the research, but only you will know the approach that works best for you and your child. 💙

Now tell me in the comments: what’s a parenting move you’ve made recently that feels right to you?

#parentingcommunity #parentingsupport #parentingquotes #emilyoster #parentdata
...

Let’s talk about sex (after) baby! Today on the podcast, I was lucky enough to speak with @enagoski about her new book on sexual connection in long-term relationships. Especially after having kids, this is something many people struggle with. Emily tells us to stop worrying about what’s “normal” and focus on pleasure in its many forms.

Listen and subscribe to ParentData with Emily Oster in your favorite podcast app 🎧

#parentdata #parentdatapodcast #emilyoster #emilynagoski #comeasyouare #cometogether #longtermrelationship #intimacy #relationships

Let’s talk about sex (after) baby! Today on the podcast, I was lucky enough to speak with @enagoski about her new book on sexual connection in long-term relationships. Especially after having kids, this is something many people struggle with. Emily tells us to stop worrying about what’s “normal” and focus on pleasure in its many forms.

Listen and subscribe to ParentData with Emily Oster in your favorite podcast app 🎧

#parentdata #parentdatapodcast #emilyoster #emilynagoski #comeasyouare #cometogether #longtermrelationship #intimacy #relationships
...

Ever wondered if you can safely use leftover baby formula? 🍼 The CDC says to throw out unused formula immediately because of the risk of bacterial growth. However, research suggests that bacterial concentrations do not appreciably increase after 3, 12, or even 24 hours at refrigerator temperatures. Good news! This means there’s not a strong data-based reason to throw out formula right away if you store it in the fridge.

Comment “Link” for a DM to an article on another common formula question: should you throw away old formula powder?

#emilyoster #parentdata #babyformula #babyfeeding #parentingstruggles

Ever wondered if you can safely use leftover baby formula? 🍼 The CDC says to throw out unused formula immediately because of the risk of bacterial growth. However, research suggests that bacterial concentrations do not appreciably increase after 3, 12, or even 24 hours at refrigerator temperatures. Good news! This means there’s not a strong data-based reason to throw out formula right away if you store it in the fridge.

Comment “Link” for a DM to an article on another common formula question: should you throw away old formula powder?

#emilyoster #parentdata #babyformula #babyfeeding #parentingstruggles
...

What’s the most important piece of advice for new parents? Here’s one answer, but I want to hear from you! Share your suggestions in the comments ⬇️

#emilyoster #parentdata #parentingtips #parentingadvice #newparents #parentingcommunity

What’s the most important piece of advice for new parents? Here’s one answer, but I want to hear from you! Share your suggestions in the comments ⬇️

#emilyoster #parentdata #parentingtips #parentingadvice #newparents #parentingcommunity
...

What's in the bag of a Vagina Economist? 👀 Someone please tell me this looks familiar to you.

What`s in the bag of a Vagina Economist? 👀 Someone please tell me this looks familiar to you. ...

Comment ”link” for a DM to learn more about tongue ties 🔗

Breastfeeding is often difficult, especially at the start. For babies with tongue ties, many infants (and their moms) struggle to get the hang of a good latch. This can lead to painful nipples and to inefficient feeding, and then low weight gain.

So what does the data say about the increasingly common practice of cutting tongue-ties in infants to improve breastfeeding success? Several weeks ago, @nytimes published a long and quite scary article on this topic.

After diving into the data, here is what I found. There is limited evidence that frenotomy procedures improve breastfeeding efficacy and the harms of the procedure are minimal. Many women do report that it alleviates pain and helps them with breastfeeding. However, it should not be a first-line treatment for breastfeeding problems.

#parentdata #emilyoster #tonguetie #tonguetiebabies #breastfeedingsupport

Comment ”link” for a DM to learn more about tongue ties 🔗

Breastfeeding is often difficult, especially at the start. For babies with tongue ties, many infants (and their moms) struggle to get the hang of a good latch. This can lead to painful nipples and to inefficient feeding, and then low weight gain.

So what does the data say about the increasingly common practice of cutting tongue-ties in infants to improve breastfeeding success? Several weeks ago, @nytimes published a long and quite scary article on this topic.

After diving into the data, here is what I found. There is limited evidence that frenotomy procedures improve breastfeeding efficacy and the harms of the procedure are minimal. Many women do report that it alleviates pain and helps them with breastfeeding. However, it should not be a first-line treatment for breastfeeding problems.

#parentdata #emilyoster #tonguetie #tonguetiebabies #breastfeedingsupport
...

Tag a friend who needs to hear this 💛 For many choices in parenting, there is no one right answer. We can use research and data to make informed decisions, but ultimately, it won’t tell you what to do. Only you can decide what will be best for your kids and your family.

I’m here to remind you to take a deep breath and trust yourself. I’ll be here to support you along the way. 

Thank you to everyone who submitted videos, including:
@sarah.consoli
@jess_lynn627
@nicolevandenwills
@thedrblair
@ncbenedict29
@haleycimini
@iamkellysnodgrass
@calesse_smith
@garnet__gordon
@jencoopgaiser87
@danigirl18c
@jamielundergreen
@carly_comber
@thecelebratingmama
@emilyannbynum
@eeliz413

#emilyoster #parentdata #parentingadvice #parentingsupport #parentingquotes

Tag a friend who needs to hear this 💛 For many choices in parenting, there is no one right answer. We can use research and data to make informed decisions, but ultimately, it won’t tell you what to do. Only you can decide what will be best for your kids and your family.

I’m here to remind you to take a deep breath and trust yourself. I’ll be here to support you along the way.

Thank you to everyone who submitted videos, including:
@sarah.consoli
@jess_lynn627
@nicolevandenwills
@thedrblair
@ncbenedict29
@haleycimini
@iamkellysnodgrass
@calesse_smith
@garnet__gordon
@jencoopgaiser87
@danigirl18c
@jamielundergreen
@carly_comber
@thecelebratingmama
@emilyannbynum
@eeliz413

#emilyoster #parentdata #parentingadvice #parentingsupport #parentingquotes
...

Congratulations on making it through another year of panic headlines! We’ve had some doozies this year, like aspartame causing cancer and the perils of white noise, but these headlines are very often based on poor data. Correlation does not equal causation. There will certainly be more panic headlines in 2024, but ParentData is here to debunk them for you.

#emilyoster #parentdata #happynewyear2024 #panicheadline #datadriven

Congratulations on making it through another year of panic headlines! We’ve had some doozies this year, like aspartame causing cancer and the perils of white noise, but these headlines are very often based on poor data. Correlation does not equal causation. There will certainly be more panic headlines in 2024, but ParentData is here to debunk them for you.

#emilyoster #parentdata #happynewyear2024 #panicheadline #datadriven
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