A study of 170 families reveals the link between everyday smartphone interruptions and children’s behavior problems.

Introduction: The Weight of a Single Notification

You’re building blocks with your child when your phone buzzes. You pick it up to “just check,” reply to a message, tap a link, and by the time you look up your child has called “Mom/Dad, look!” three times.

It’s a familiar scene. For most parents, it happens multiple times a day. Research shows parents spend an average of five hours daily on their smartphones, and 27% of that occurs while they’re with their children.

These moments — when digital devices intrude on parent-child time — are what researchers call technoference. A portmanteau of “technology” and “interference.”

But do these everyday moments, experienced by nearly every parent every day, actually affect children’s behavior? Two American researchers studied 170 families to find out.

The Core Research Question

Brandon McDaniel of Illinois State University and Jenny Radesky of the University of Michigan Department of Pediatrics asked two questions:

1. Do parents who use their devices more “problematically” experience more technoference during interactions with their children?

2. Is more frequent technoference associated with more child behavior problems?

Simple as they seem, this study was the first to systematically test both questions together.

How the Study Was Conducted

Measuring Technoference

Parents were asked: “During a typical day, how many times do the following devices interrupt your conversations or activities with your child?” Six device types were assessed: smartphones, TV, computers, tablets, iPods, and gaming consoles.

Problematic Technology Use

Parents also reported on their own perception of device use. Three items measured on a 6-point scale: “I can’t resist checking new message notifications,” “I often think about calls or messages I might receive,” and “I feel like I use my smartphone too much.”

Child Behavior Problems

The Child Behavioral Checklist (CBCL) was used. Mothers and fathers independently reported on externalizing behaviors (tantrums, restlessness, defiance — 24 items) and internalizing behaviors (whining, sulking, being easily hurt — 36 items).

Control Variables

The study controlled for parenting stress, co-parenting quality, depressive symptoms, household income, parental education, and children’s own screen time — ensuring that technoference effects weren’t attributable to other factors.

Study Design and Participants

  • Participating families: 170 (168 mothers, 165 fathers)
  • Average child age: 3.04 years (range: 1–5.5 years)
  • Average relationship duration: 10.1 years, 95% married
  • Race: 92% White
  • Education: 73% bachelor’s degree or higher
  • Median household income: ~$69,500
  • Mothers and fathers responded to identical surveys independently — designed to reduce single-reporter bias
  • Analysis: Structural equation modeling using the Actor-Partner Interdependence Model (APIM)

Results: Even “Normal” Levels of Interruption Were Associated with Behavior Problems

How Common Is Technoference?

  • 89% of parents reported at least one device interruption per day during child interactions
  • 48% reported three or more daily
  • On average, both mothers and fathers said about two devices regularly interrupted their interactions

Problematic Technology Use

  • 40% of mothers and 32% of fathers perceived their own device use as problematic
  • Mothers were statistically more likely than fathers to view their smartphone use as problematic

The Key Pathway: Problematic Use → Technoference → Child Behavior Problems

Structural equation modeling revealed:

Step 1 — Problematic use predicted technoference

  • Mothers’ problematic device use → Mother-child technoference (β = .35, p < .001)
  • Fathers’ problematic device use → Father-child technoference (β = .39, p < .001)

This pattern was identical for both parents.

Step 2 — Technoference predicted behavior problems for mothers only

  • Mothers’ technoference → Child externalizing behavior (β = .20, p < .001)
  • Mothers’ technoference → Child internalizing behavior (β = .16, p < .01)
  • Fathers’ technoference → Not significant

Crucially, mothers’ technoference predicted child behavior problems as reported by fathers as well (internalizing: β = .14, p < .05). This wasn’t just one parent’s subjective perception — both parents reported the same pattern.

Mobile Devices Specifically

When analyzing only portable devices (smartphones, tablets, iPods), results became even more consistent. Mothers’ mobile technoference significantly predicted both externalizing and internalizing behavior across both mothers’ and fathers’ reports.

Why Only Mothers? Why Didn’t Fathers’ Technoference Show an Effect?

This asymmetry is the study’s most striking finding. The research team offers several possible explanations.

First, differences in time spent together. In this study, 45% of mothers worked 30+ hours per week compared to 82% of fathers. If mothers spend more total time with children, there are more “opportunities” for technoference and more chances for its effects to accumulate.

Second, differences in emotional co-regulation. Children may regulate emotions differently with each parent. When a mother’s responsiveness drops, the emotional impact on the child may be greater than when a father’s does.

Third, fathers may simply have reported their device use less accurately.

The research team doesn’t claim to know which explanation is correct and calls for follow-up studies.

A Surprising Finding: Stronger Effects in Higher-Income Families

When the team split the model by income level, an unexpected pattern emerged.

Higher-income families: Mothers’ technoference → Child externalizing behavior (β = .33, p < .001) Lower-income families: Same pathway was essentially null (β = .03, p = .78)

Why the difference? The researchers’ interpretation:

In lower-income families, other stressors — financial hardship, housing instability — may exert a stronger influence on children’s externalizing behavior, making technoference a relatively smaller factor.

In higher-income families, with fewer external stressors, parental smartphone use becomes a more prominent factor. Notably, the number of devices owned, frequency of technoference, and level of child behavior problems themselves did not differ by income.

Practical Takeaways

Even “Everyday Levels” Matter

What’s notable about this study is that clinically addictive smartphone use wasn’t required. Even the ordinary level of technoference most parents experience was significantly associated with child behavior problems. The researchers describe this as having “public health implications.”

What’s Needed Is Awareness, Not Guilt

This study doesn’t say “using your phone makes you a bad parent.” With 40% of mothers and 32% of fathers already feeling their use is problematic, devices are deeply embedded in modern parenting life. What matters is recognizing the pattern and consciously putting the device down during key moments with your child.

Institutional Recommendations

The American Academy of Pediatrics (AAP) and Zero to Three already recommend “unplugged family time.” This study adds another layer of scientific evidence supporting that guidance.

Limitations

The research team openly acknowledged several important constraints:

  • Cross-sectional design — causal direction cannot be established. Does technoference cause behavior problems, or do parents of difficult children escape into their phones? Or both? Prior interview research found stay-at-home mothers reported using devices “to escape boredom or frustration with parenting.”
  • Self-report data — parents may have under- or over-reported their device use, and subjective bias could affect behavior assessments. Video coding or objective device tracking would strengthen future studies.
  • Limited sample diversity — 92% White, 73% with a bachelor’s degree or higher, 95% married. Results need replication in more diverse populations.
  • Context was not measured — whether technoference occurred during meals, play, or bedtime, and what content parents were viewing, was not captured.

Despite these limitations, this study holds significance as the first systematic evidence of “how rapidly proliferating digital technology participates in complex processes within families.”

Final Thoughts

The message of this research is simple but heavy:

The “just a quick check” moments nearly every parent repeats daily — when they accumulate, they may be associated with children’s emotions and behavior.

Of course, one glance at your phone won’t ruin your child. This study doesn’t claim that either. But it does ask whether those small moments we repeat so automatically are truly “nothing” — and whether they deserve a second look.

When your child says “Mom, look!” or “Dad, watch this!” — looking up from the screen and meeting their eyes. That simple act may carry more weight than we think.

Source: McDaniel, B. T., & Radesky, J. S. (2018). Technoference: Parent distraction with technology and associations with child behavior problems. Child Development, 89(1), 100–109. https://doi.org/10.1111/cdev.12822