Research-Backed Benefits of the Baby Signs® Program
The Baby Signs® Program is a research-based early communication program for hearing babies. Developed by child development experts Dr. Linda Acredolo and Dr. Susan Goodwyn, the program helps babies communicate before they can talk by using simple signs along with spoken words. Research has shown benefits for early language development, parent-child bonding, reduced frustration, social-emotional growth, and cognitive development.
For more than two decades, families, educators, and early childhood professionals have used the Baby Signs® Program to help babies share their needs, feelings, thoughts, and discoveries before they are able to speak clearly.
The result is simple but powerful: babies feel understood, caregivers feel more connected, and daily routines often become calmer and more joyful.
Developed by Child Development Experts
Dr. Linda Acredolo & Dr. Susan Goodwyn
NIH-Funded Research
Long-term study on signing with hearing babies
Used by Families & Professionals
Parents, educators, caregivers, and early childhood programs
Represented in 40+ Countries
A trusted early communication program worldwide
What Are the Benefits of the Baby Signs® Program?
Using the Baby Signs® Program can help babies communicate before they can talk while supporting language, social-emotional development, parent-child connection, and cognitive growth.
- Reduce tears, tantrums, and frustration
- Help babies share their needs, feelings, and interests
- Strengthen the parent-child bond
- Increase respect for babies’ abilities
- Boost self-esteem and self-confidence
- Support spoken language development
- Stimulate intellectual development
These research-backed benefits are explained in more detail below, including how signing supports language development, social-emotional growth, and cognitive development.
Does Signing Help Babies Learn to Talk?
Yes. The Baby Signs® Program is designed to support spoken language, not replace it.
Some parents worry that encouraging babies to use signs might delay speech. Research on the Baby Signs® Program found the opposite. When adults sign and say the word at the same time, babies hear spoken language while also gaining a way to communicate before speech is fully developed.
Just as crawling does not reduce a baby’s motivation to walk, signing does not reduce a baby’s motivation to talk. Signs give babies a bridge to spoken language.
Research findings include:
- By age 2, Baby Signs® babies had significantly larger vocabularies than their non-signing peers.
- By age 3, their language skills were more like those of 4-year-old children.
- At 24 months, Baby Signs® babies were talking more like 27- to 28-month-olds.
- At 36 months, Baby Signs® babies were talking more like 47-month-olds.
Bottom line: Signing does not delay speech. It gives babies a way to communicate while spoken language is developing.
Language Development
Research on the Baby Signs® Program found that signing supports spoken language rather than replacing it. When adults sign and say the word at the same time, babies hear language while also gaining a way to communicate before speech is fully developed.
With the help of a large grant from the federal government, Dr. Linda Acredolo and Dr. Susan Goodwyn found that babies who used the Baby Signs® Program developed stronger language skills than their non-signing peers.
By age 2, Baby Signs® babies had significantly larger vocabularies. By age 3, their language skills were more like those of 4-year-old children.
Social-Emotional Development
The Baby Signs® Program supports more than early communication. By giving babies a way to express needs, feelings, thoughts, and discoveries before they can talk, signing can support emotional development, confidence, and connection.
Reduces Tears, Tantrums, and Frustration
By the time babies are 9 to 10 months old, many already know what they need or want. What they do not yet have are the spoken words to tell us, which can lead to frustration for both babies and parents.
All this changes when a baby is able to use signs. With signs like EAT, MILK, MORE, ALL DONE, HURT, HOT, COLD, and SLEEP, babies can make their needs known more quickly and calmly. No wonder “decreased frustration” is one of the most common benefits families report when they use the Baby Signs® Program.
Allows Babies to Share Their Worlds
Just because babies do not talk yet does not mean they are not paying attention to the world around them. Babies see things, think things, remember things, and make connections long before they can explain them with words.
With signs at their command, all this does not have to remain their secret. Parents of Baby Signs® babies quickly learn to see the world through their baby’s eyes and appreciate in a whole new way what an amazing world it is.
Signs help babies share not only what they need, but also what they notice, remember, and enjoy.
Boosts Self-Esteem and Self-Confidence
Good self-esteem begins with the feeling that we are capable, valued, and understood by the people who love us.
That is exactly what the ability to use signs can give babies. When babies communicate effectively with their caregivers, and their caregivers respond positively, babies experience the joy of being understood.
These moments help Baby Signs® babies develop confidence, pride, and a growing sense that their communication matters.
Strengthens the Parent-Child Bond
Communicating means connecting. When you and your baby can communicate, your relationship grows closer and more satisfying for both of you.
Signing encourages face-to-face interaction, shared attention, and responsive caregiving. Each time a baby signs and a caregiver responds, the baby learns, “You understand me. You are listening. What I have to say matters.”
That kind of early communication helps strengthen the parent-child bond in everyday moments.
Signs can also help babies communicate internal states and feelings, such as HURT, SLEEPY, COLD, HAPPY, SAD, AFRAID, or ANGRY, helping caregivers respond with more sensitivity and understanding.
Research note: Parent interviews from Baby Signs® research found that signing was associated with lower frustration, greater respect for babies’ abilities, enriched parent-child relationships, increased interest in books, and enhanced infant self-esteem.
Cognitive Development
How Does Signing Support Cognitive Development?
Baby Signs® babies are busily using their signs to learn about the world, while their non-signing peers are still waiting for the words they need to do the same.
For example, a Baby Signs® baby may label a piece of broccoli with the sign for FLOWER while smiling quizzically, as if asking, “It looks like a flower, but what is it?” These moments show that babies are not just asking for what they need. They are observing, comparing, remembering, and making meaning.
This kind of symbolic thinking is an important foundation for language and learning. When babies use signs, they learn that one thing can stand for another, the same kind of thinking they will later use for spoken words, pretend play, reading, and writing.
Jumpstarts Intellectual Development
One surprising result of Dr. Linda Acredolo and Dr. Susan Goodwyn’s research was the long-term positive effect associated with signing in infancy. When children from their federally funded Baby Signs® study were assessed again at age 8, children who had used the Baby Signs® Program as babies scored significantly higher on IQ testing than children in the non-signing comparison group.
In the study, 8-year-olds who had been Baby Signs® babies scored an average of 12 points higher on IQ tests than their non-signing peers.
The Science Behind the Baby Signs® Program Proven Benefits From Two Decades of Scientific Research
Dr. Linda Acredolo and Dr. Susan Goodwyn, the authors of the book Baby Signs: How to Talk with Your Baby Before Your Baby Can Talk, have conducted over two decades of academic research on the use of signs with hearing babies, including a long-term study funded by the National Institutes of Health. Their groundbreaking research describes the proven benefits of the Baby Signs® Program.
Research Highlights
Linda Acredolo, Ph.D., is a Professor Emeritus of Psychology at the University of California, Davis.
Susan Goodwyn, Ph.D., is a Professor of Psychology at California State University, Stanislaus.
Participants
More than 140 families joined our study when their babies were 11 months old. Each family was randomly assigned to a Baby Signs® group or a non-Baby Signs® group. The groups were equivalent at the beginning of the study in terms of the following characteristics: sex and birth order of the children, their tendency to vocalize or verbalize words, and the parent's education and income levels.
Assessments
The children were assessed using standardized language measures at 11, 15, 19, 24, 30, and 36 months. In addition, as many children as could be reached at age 8 were assessed using the WISC-III IQ test, the most commonly used measure of children's intelligence.
Results
At 24 months, the Baby Signs® babies were, on average, talking more like 27 or 28-month-olds. This represents more than a three-month advantage over the non-Baby Signs® babies. In addition, the 24-month-old Baby Signs® babies were putting together significantly longer sentences.
At 36 months, Baby Signs® babies were talking like 47-month-olds, putting them almost a year ahead of their average age-mates.
Eight-year-olds who had been Baby Signs® babies scored an average of 12 points higher in IQ than their non-signing peers.
Conclusion
Using Baby Signs® helps children develop both language and cognitive skills.
Academic Research
One reason the Baby Signs® Program has been so well-received is because it is firmly grounded in research. In addition to the NIH-funded study by Dr. Linda Acredolo and Dr. Susan Goodwyn, research conducted by Dr. Claire Vallotton explored the use of signs in Early Head Start and childcare settings.
Conclusion
Because the Baby Signs® Program is grounded in research, easy to implement, and beneficial for babies, families, educators, and childcare providers, it continues to be a trusted early communication program for hearing babies around the world.
Recommended Research Articles
For readers who would like to explore the academic background behind the Baby Signs® Program, the research is often discussed in scholarly literature under the term symbolic gesturing.
The Baby Signs® Program is grounded in research on symbolic gesturing, early communication, language development, and parent-child interaction. The articles below provide additional background for families, educators, and professionals who want to learn more about the research behind signing with hearing babies.
FAQ: Baby Signs® Research and Benefits
Ready to Experience the Benefits of Baby Signs®?
Whether you are a parent, caregiver, early childhood educator, or professional working with babies and toddlers, the Baby Signs® Program gives you practical tools to support communication before words.