A Catholic family praying together in church

Faith • Family • Research

Raised in Faith

What does the research actually say about children who grow up practicing their faith?

Faith is not a parenting technique.

Catholic parents do not take their children to Mass because a study says it might improve their grades. We do not teach them to pray because researchers discovered an association with lower drug use. And we do not teach them about Jesus because Christianity is a strategy for producing successful adults.

We do these things because we believe they are true.

But there is still a fascinating question worth asking: What happens to children who actually grow up practicing their faith?

Researchers have been studying that question for decades. And the results deserve attention.

Large studies have found associations between religious participation during childhood and adolescence and lower rates of substance use, delinquency and certain risky behaviors, alongside higher levels of happiness, volunteering, purpose and other measures of well-being.

That does not mean every religious child will flourish. It does not mean every nonreligious child will struggle. And it does not prove that religion alone caused every difference researchers observed.

But taken together, the research suggests something important: A home in which faith is genuinely practiced can be a meaningful part of the environment in which children develop.

The Numbers

The Numbers Are Worth Looking At

Associations reported in the cited studies. These statistics do not establish that religious practice alone caused the outcomes.

The Evidence

The Studies Behind the Numbers

Each study below is a real, peer-reviewed investigation. Click through to read the original research.

Associations of Religious Upbringing With Subsequent Health and Well-Being

Harvard T.H. Chan School of Public Health — American Journal of Epidemiology (2018)

Sample

5,000+ young people

Duration: 8–14 years (adolescence into young adulthood)

  • •Weekly religious-service attenders were 18% more likely to report higher happiness, 29% more likely to volunteer, and 33% less likely to use illicit drugs.
  • •Those who prayed or meditated daily were 16% more likely to report higher happiness, 30% less likely to have initiated sexual activity early, and 40% less likely to have contracted an STI.
  • •Researchers adjusted for socioeconomic status, maternal health, depressive symptoms, and substance-abuse history.
View Original Source

Religion and American Adolescent Delinquency, Risk Behaviors and Constructive Social Activities

National Study of Youth and Religion / Monitoring the Future — Christian Smith & Robert Faris

Sample

2,478 high-school seniors

Duration: 30 behavioral outcomes examined

  • •Of 30 outcomes examined, 29 were significantly associated with religious involvement.
  • •Religiously involved youth were less likely to participate in substance abuse, crime and violence, risky behaviors, and school problems.
  • •They were more likely to participate in constructive school and community activities.
  • •The one exception was bringing a gun to school, a relatively rare event in the dataset.
View Original Source

Religious Involvement, Family Processes, Self-Control, and Juvenile Delinquency

Journal of Adolescence (2018) — Siying Guo

Sample

1,020 adolescents

Duration: Multiple waves, National Longitudinal Survey of Youth

  • •Parental religious involvement affected adolescent delinquency primarily indirectly.
  • •Key pathways included the child's own religious involvement, parenting practices, parental conflict, and development of self-control.
  • •What happened inside the family mattered — not just having religious parents.
View Original Source

Religiousness and Adolescent Outcomes — National Study of Youth and Religion

National Study of Youth and Religion (2023)

Sample

3,290 adolescents

Duration: Nationally representative study

  • •Examined individual religiousness, family religiousness, peer religiousness, and religious-community support.
  • •Compared these with future orientation, grades, community involvement, alcohol use, sexual activity, and depression.
  • •Multiple dimensions of religious life were associated with youth outcomes.
  • •Religion exists within a family, peer group, and community — not only inside a child's mind.
View Original Source

Religious Attendance, Club Participation, and Academic Outcomes

U.S. National Library of Medicine — Longitudinal adolescent study

Sample

3,993 Canadian adolescents

Duration: Grades 9 through 12

  • •More frequent religious attendance predicted lower substance use the following year.
  • •Participation in nonreligious clubs — not religious attendance — predicted subsequent higher academic achievement.
  • •Some benefits appear more consistently than others — we should not exaggerate the research.
View Original Source

But Is Religion Really Responsible?

This is where we need to be careful. Finding an association does not automatically prove causation.

Perhaps religious parents monitor their children more closely. Perhaps religious communities provide better social support. Perhaps children encounter different peer groups. Perhaps families who regularly attend church spend more time together. Perhaps religious teaching helps children develop self-control. Perhaps belonging to a community gives adolescents greater purpose and accountability.

Or perhaps several of these things are happening simultaneously.

Researchers have investigated that question too. A longitudinal study using multiple waves of the National Longitudinal Survey of Youth followed 1,020 American adolescents. Researchers found that parental religious involvement was related to adolescent delinquency primarily indirectly.

Some of the pathways included: the child's own religious involvement, parenting practices, conflict between parents, and development of self-control.

In other words, simply having religious parents wasn't necessarily the whole story. What happened inside the family mattered.

An Important Distinction

Association Does Not Mean Guarantee

Socioeconomic status, parenting, family structure, peers, personality, education and numerous other variables can affect outcomes. Good research attempts to control for many of these factors, but no observational study can eliminate every possible explanation.

The statistics on this page should be understood as associations identified by researchers, not promises about individual children.

There Is a Difference Between "Religious" and Practicing

Checking a box that says Catholic is not necessarily the same thing as living in a Catholic home.

Research frequently measures things such as: frequency of religious-service attendance, frequency of prayer, importance of religion, participation in religious groups, family religiousness, personal religiousness, and support from a religious community.

That matters. A family that identifies as Catholic but rarely attends Mass, rarely prays and rarely discusses God is very different from a household in which faith forms part of everyday life.

And the research frequently finds associations with religious practice, not merely a religious label.

Faith Seems to Work Through the Family

A child learns much more about Christianity by watching Mom and Dad than by listening to Mom and Dad.

Children notice. They notice whether we pray. They notice whether we forgive. They notice whether Sunday Mass is negotiable. They notice how we speak about other people. They notice whether we help someone who cannot repay us. They notice whether we go to Confession. They notice what happens when Mom and Dad disagree. They notice whether our Catholic faith disappears Monday morning and reappears Sunday morning.

And eventually they notice something even more uncomfortable: whether we actually believe what we tell them to believe.

Research into religion and adolescent development gives us reason to take that distinction seriously. A nationally representative study of 3,290 American adolescents from the National Study of Youth and Religion examined individual religiousness, family religiousness, peer religiousness and religious-community support.

Researchers compared those dimensions with outcomes including future orientation, grades, community involvement, alcohol use, sexual activity, and depression. Multiple dimensions of religious life were associated with youth outcomes, although the relationships varied by measure and religious affiliation.

This is important because religion does not exist only inside the mind of a child. It exists within a family, peer group and community.

What About Academic Success?

Here the evidence deserves more caution.

There are studies showing relationships between religiosity and academic outcomes, but the evidence does not justify saying: "Going to church makes your child smarter." That isn't what the research demonstrates.

For example, a longitudinal study following 3,993 Canadian adolescents from grades 9 through 12 found that more frequent religious attendance predicted lower substance use in the following year. However, participation in nonreligious clubs — not religious attendance — predicted subsequent higher academic achievement.

That is exactly why we should not exaggerate this research. Some benefits appear more consistently than others.

What the Research Does NOT Say

This deserves to be said clearly. Science has not proven that Catholic children will be more successful than non-Catholic children.

It has not proven that Catholic children won't use drugs. That Catholic children won't commit crimes. That Catholic children won't leave the Church. That Catholic children will have successful marriages. That Catholic children will become wealthy. That Catholic children won't suffer from depression or mental illness.

And it certainly has not proven that religious parents automatically raise better children.

Human beings are not equations. Children have free will. Families are complicated. Socioeconomic circumstances matter. Genetics matter. Education matters. Neighborhoods matter. Friends matter. Family stability matters. Parenting matters. And individual personalities matter.

Good research attempts to control statistically for many of these variables, but no observational study can eliminate every possible explanation.

So we should never turn these findings into: "Raise your child Catholic and everything will turn out fine." Christianity has never promised us that anyway.

Then Why Does This Research Matter?

Because modern culture sometimes presents religion as something children must endure rather than something that might actually contribute positively to their development.

The evidence doesn't fit that simplistic picture. Regular participation in religious life has repeatedly been associated with meaningful measures of human flourishing.

Researchers at Harvard have gone far beyond childhood studies. A substantial body of work from the Harvard Human Flourishing Program and other researchers has examined religious participation in relation to physical health, mental health, social connection, volunteering, purpose, depression, substance use, suicide and longevity.

Harvard researchers reviewing this field have concluded that participation in spiritual or religious communities is associated with several measures of healthier living.

Explore the Research

The Catholic Perspective

A Catholic Parent Should Expect Something More

A child praying in church with stained glass
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The purpose of raising Catholic children isn't to manufacture successful adults.

It is to introduce our children to Jesus Christ.

But Look at What Catholicism Gives a Child

Think about the environment created when Catholicism is actually lived in a home. A child is taught:

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Your life has a purpose.

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You were created intentionally by God.

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You possess inherent dignity.

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Right and wrong are real.

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Your actions have consequences.

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You are responsible for other people.

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The poor matter.

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Your body has dignity.

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Sex has meaning.

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Marriage has meaning.

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Suffering is not meaningless.

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Forgiveness is possible.

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You will make mistakes.

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You can confess those mistakes.

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You can begin again.

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You are expected to serve others.

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You belong to something larger than yourself.

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Death is not the end.

And above everything else: You are loved by God.

We should not be shocked if living inside that worldview sometimes produces measurable differences.

Living It

What Does a Practicing Catholic Home Actually Look Like?

Not perfection. A Catholic home is not a museum filled with statues where everyone behaves perfectly. It is a home full of sinners trying to become saints. Parents lose their tempers. Children misbehave. People argue. Someone needs forgiveness. That is precisely why we have a Savior.

But there are practical things Catholic parents can establish. Tap each card to expand.

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The Research Is Interesting.
The Mission Is Greater.

You have been entrusted with a soul.

A Note About These Studies

Nonno Books believes good apologetics requires intellectual honesty. Most of the research cited on this page examines religious participation generally, not Catholic households exclusively. These studies therefore should not be presented as proof that Catholic upbringing produces superior outcomes compared with every other religious or nonreligious upbringing.

Most are also observational studies. Researchers can statistically adjust for many alternative explanations, but observational evidence cannot establish causation with the certainty of a randomized experiment.

Our Catholic faith does not depend upon these studies. But when serious research tells us something interesting about religious practice, we shouldn't be afraid to look at the evidence.

Sources & Further Reading

Harvard T.H. Chan School of Public Health

Ying Chen & Tyler J. VanderWeele — Associations of Religious Upbringing With Subsequent Health and Well-Being From Adolescence to Young Adulthood, American Journal of Epidemiology (2018).

https://hsph.harvard.edu/news/religious-upbringing-adult-health/

U.S. Department of Justice — Office of Justice Programs

Christian Smith & Robert Faris — Religion and American Adolescent Delinquency, Risk Behaviors and Constructive Social Activities.

https://www.ojp.gov/ncjrs/virtual-library/abstracts/religion-and-american-adolescent-delinquency-risk-behaviors-and

Journal of Adolescence / PubMed

Siying Guo — A Model of Religious Involvement, Family Processes, Self-Control, and Juvenile Delinquency in Two-Parent Families (2018).

https://pubmed.ncbi.nlm.nih.gov/29310010/

National Study of Youth and Religion / PubMed

Research examining religious affiliation, individual religiousness, family religiousness, peer religiousness, religious-community support and adolescent outcomes.

https://pubmed.ncbi.nlm.nih.gov/37505200/

Harvard Human Flourishing Program

Additional publications concerning religion, health and human flourishing.

https://hsph.harvard.edu/research/vanderweele-group/health-and-well-being-publications/