What the survey says:
Through a parent-report tool designed to track how deceptive behaviors emerge in children from infancy through age 3, researchers found that many forms of simple deception, such as pretending not to hear, hiding things, denial, or making excuses, appeared much earlier than previously thought, with some parents reporting these behaviors as early as 8 to 10 months.
Across more than 700 children, the study found that deception develops gradually alongside social, language, and cognitive growth, and that most children demonstrated at least one deceptive behavior by around 2 years old. The researchers emphasize that these behaviors are a normal part of development and may reflect children learning social rules, testing boundaries, and developing early communication and self-regulation skills.
Sarah's take:
This is the kind of finding that can feel surprising, even unsettling. But a closer look points to something familiar to anyone who spends time with babies and toddlers: young children are constantly testing how the world works, especially when it comes to people.
In these early years, children are paying close attention to patterns. They notice what happens when they hide an object, avoid a request, or give an unexpected response. These moments are less about intent and more about experimentation. Children are gathering information about cause and effect in social situations.
Researchers also found that these behaviors become more varied over time, tracking alongside growth in language, memory, and social understanding. A toddler who shakes their head “no” after breaking a rule is working with a very different set of skills than a preschooler who can invent a more elaborate explanation. The developmental path matters.
For families and caregivers, this reframes what can otherwise feel like challenging behavior. A child who insists “I didn’t do it” or suddenly seems not to hear a request is engaging in a kind of problem-solving. They are trying out strategies to manage a situation, often in the simplest way available to them.
These moments also sit squarely in the context of relationships. Children learn how to communicate, respond, and repair through repeated interactions with the adults in their lives. The study points to connections between what children experience and what they come to understand, reinforcing what we already know, that development does not happen in isolation.
There is no single script for how to respond, and approaches will vary across families and cultures. Still, a few principles hold up across contexts. Staying calm helps keep the focus on learning. Naming what you observe can ground the interaction in reality. Inviting children into problem-solving builds skills they will use later.
For example, when a child denies eating the cookie, a response might sound like, “I see crumbs on your hands. Let’s clean up and figure out what happened.” This keeps the interaction anchored in connection rather than escalation.
Over time, these everyday exchanges shape how children understand honesty, trust, and responsibility. The goal is not to eliminate these behaviors, but to guide children through them in ways that support their growing awareness of others.
The headline may focus on early “deception.” The deeper takeaway is about development in motion. These small, often frustrating moments are part of how children learn to navigate a complex social world, one interaction at a time. And that is the real story worth paying attention to.


A recent Seattle Times article focuses on the School House Connection report,


Phil’s take:


What the research says:
This study examined whether recorded maternal speech could influence brain development in very preterm infants cared for in the neonatal intensive care unit (NICU). Researchers played recordings of mothers reading aloud to their babies for several hours each night over multiple weeks. MRI scans taken near term-equivalent age showed that infants exposed to these recordings had more mature development in the left arcuate fasciculus, a brain pathway critical for speech and language.
The findings suggest that consistent exposure to human speech, even in the earliest stages of life, may help strengthen neural connections that support later language development.
Mike’s take:
We know that nurturing relationships and low parental stress are essential to healthy child development, 