"I was spanked and I turned out fine."
How many times have you heard this defense of spanking children? But what does the research tell us about spanking effectiveness, child discipline, and long-term consequences?
My guest, Professor Andrew Grogan-Kaylor from the University of Michigan, has extensively researched physical punishment and argues that spanking should be classified as an Adverse Childhood Experience (ACE)—a marker of severe trauma. When we examine spanking closely, we're discussing hitting another human being, something we'd never accept between adults. As Dr. Grogan-Kaylor points out, parents typically spank when frustrated or angry, making it virtually impossible to administer in a truly "controlled" way.
In the episode, we also discuss how, due to the way that a quirk in one researcher’s agenda aligned with changes in ethical rules governing experiments, that there’s actually scientific evidence from randomized controlled trials to support the efficacy of spanking at changing children’s behavior to make it acceptable to their parents! Now the rules have changed and wouldn’t permit spanking during an experiment, it isn’t possible to generate evidence against spanking. So advocates of spanking (and yes, there are some!) can honestly say that there is evidence of the highest quality in favor of spanking, and no evidence of that quality against it.
And of course we have to ask ourselves: is compliance what we really want? Our instinctive response to that question might be “Yes! I do want flipping compliance – and I want it now!” But I know many parents listening to the show have a goal to raise children who speak up when they see injustice, and who are internally motivated to do the right thing…and unfortunately focusing on making children’s behavior comply with our wishes works against that.
But that doesn’t mean the alternative is letting our child rule the roost. There are ways to get your needs met and also meet your child’s needs, without spanking, threatening to spank, punishing, giving Time Outs, withholding privileges, or any other tools like this.
Questions this episode will answer
What does research show us about spanking children?
Professor Grogan-Kaylor's meta-analysis examined five decades of research covering over 160,000 children. He found consistent evidence that spanking is associated with increased:
Aggression
Antisocial behavior
Mental health problems
Cognitive difficulties.
The research clearly shows that spanking doesn't improve behavior—it actually makes it worse.
Is spanking different from physical abuse?
Dr. Grogan-Kaylor's research found that the effects of spanking and physical abuse on children are very similar. This challenges the idea that we can spank children without hurting them in the same way that physical abuse hurts them. Hitting, even when called "discipline," affects a child's developing brain and sense of safety in similar ways to abuse.
Should spanking be considered an Adverse Childhood Experience (ACE)?
Spanking affects a child's stress response system, and impacts their development. The long-term outcomes from spanking are similar to outcomes associated with established Adverse Childhood Experiences. Dr. Grogan-Kaylor makes a compelling case that spanking should join the list of recognized ACEs.
What about parents who say "I was spanked and I turned out fine"?
This is one of the most common defenses of spanking. Dr. Grogan-Kaylor explains how our understanding of child development has evolved over the last 50 years. Personal experiences, while valid, don't override the consistent findings from hundreds of scientific studies across diverse populations and cultures.
At what age do parents typically spank children?
You might be surprised by what the research shows. Dr. Grogan-Kaylor and Dr. Shawna Lee found that about a third of parents reported spanking their one-year-old children. One-year-olds cannot reliably remember and act on parent's instructions. Spanking one-year-olds is unlikely to lead to them remembering and acting on these instructions. Even at age two and three, remembering and acting on instructions is an emerging capability.
What effective alternatives to spanking can parents use instead?
The conversation doesn't just identify problems—it offers solutions! We offer evidence-based approaches to discipline that improve children's behavior while strengthening the parent-child relationship. Professor Grogan-Kaylor shares insights about why non-physical discipline methods work better for:
Teaching children appropriate behavior;
Supporting the development of emotion regulation;
Developing problem-solving skills.
What you'll learn in this episode
Physical punishment like spanking is considered harmful to children's development. Even "normal" spanking shows negative outcomes in research studies spanning five decades.
The scientific evidence showing how spanking increases children's:
Aggression
Antisocial behavior
Mental health problems.
Dr. Grogan-Kaylor's comprehensive meta-analysis shows that spanking does not improve children's behavior.
How spanking affects children across different cultures, socioeconomic backgrounds, and family situations
Why spanking should be considered an Adverse Childhood Experience (ACE). This would put it in the same category as other forms of harmful trauma.
The connection between spanking and increased risk for long-term behavior problems. This can affect a child's future relationships.
Effective parenting strategies that build positive relationships. This teaches children appropriate behavior - without resorting to physical discipline
Why the common defense "I was spanked and I turned out fine" misses important context about child development and trauma
Go from constant struggles and nagging to a new sense of calm & collaboration. I will teach you how to set limits, but we’ll also go waaaay beyond that to learn how to set fewer limits than you ever thought possible.
By joining the workshop, you’ll discover:
The 10-minute practice that makes your child want to cooperate with you
Ways to cut the number of limits set by at least half – without letting your child walk all over you or becoming a permissive parent
How to stop arguing, tantrumming, yelling, disrespectful tone, ignoring you – as well as bickering, hitting, and fighting between siblings!
It’s available in two different forms:
Mid-May to Mid-March each year: Take the course at your own pace
Mid-March to Mid-May each year: Join the waitlist and take the course with my support in early May!
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Jump to highlights
01:33 Introducing today’s episode and featured guest
05:25 The definition of spanking
07:38 The age range advocated by some for spanking, ranging from two to 12 years old
09:20 The effectiveness of spanking
16:16 The critique of positive parenting research, particularly focusing on methodological fallacies outlined by Dr. Lazarle
22:24 The question of whether there might be an optimal level of spanking that leads to maximum compliance in children
24:40 How to handle defiant children who are not complying with milder disciplinary tactics
26:21 How to comprehend the overall impact of spanking on children
32:03 Dr. Diana Baumrind's surprising involvement in studies on spanking suggesting that authoritative parents, considered successful, spank their children
35:56 The legality of spanking and the absence of legal protection for children against physical punishment
38:11 Arguments against banning spanking, citing studies that suggest little evidence of parents adopting more effective disciplinary tactics after a ban
42:10 Potential cultural and racial differences in the use of spanking
44:09 Wrapping up the discussion
References
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