Finally understand the people who drive you crazy.
They aren't out to get you. They're just wired differently. For more than 35 years, Dr. Robert Rohm has shown over 2 million people how to spot the four personality styles, so they argue less and actually get through to each other.
“Robert Rohm is one of the clearest communicators I have ever heard!”
Zig ZiglarOrganizations that have brought in Dr. Rohm
- Chick-fil-A
- Merrill Lynch
- Campbell's
- Century 21
- Arizona Diamondbacks
- Sprint
- Frigidaire
- National PTA
Three ways to work with Dr. Rohm
Bring Dr. Rohm to your people
A keynote or private training day that gets your team laughing first, then working together better on Monday morning.
See topics and dates For coaches, trainers and pastorsTeach DISC to others
Get certified online for $247. Then go as far as you want, all the way to Master Trainer.
See the certification path For you, your family and your teamUnderstand the people you love
Start with the free 2-minute quiz. When you want the whole picture, full DISC profiles start at $12.95.
Take the free quizYou're not surrounded by idiots. You're surrounded by people who are wired differently than you.
- DThe coworker who takes over every meeting and calls it "being efficient."
- IThe friend who shows up 20 minutes late, again, with a great story about why.
- SThe team member who says "that's fine" when it clearly isn't.
- CThe spouse who needs three more reviews before buying a toaster.
Sound familiar? None of these people are broken. They just see the world through a different style than you do.
Dr. Rohm spent years as an educator and earned a Ph.D. in higher education administration and counseling. Even so, one of his own daughters had him stumped.
So he went looking for answers and found the DISC model: a simple way to see the four basic personality styles. Then he spent the next few decades making it simple and positive, and easy to use at work, at home and at church.
His big idea fits on a sticky note:
“People primarily don't do things against you. They primarily do things for themselves.” Dr. Robert Rohm
Once you see that, you stop taking things so personally. You start speaking their language. And the people who used to drive you up the wall start to make sense.
Meet the four stylesEveryone you know fits somewhere on this circle
Tap a color to meet each style. Dr. Rohm uses colors because they stick. Green means go. Red is bright and fun. Blue is calm. Yellow says slow down and check.
The Dominant style
Green means go. D styles like to lead, decide fast and win. They see the goal and head straight for it.
They want
Results, control and a real challenge.
They can't stand
Wasted time, excuses and a no with no reason.
Talk to them like this
Get to the point. Bottom line first, then options. Don't take the bluntness personally.
At home
The one who plans the vacation, sets the schedule and sets the pace.
Most people are a blend of two styles. Dr. Rohm's full DISC profile shows your exact blend, out of 41 possible combinations.
35 years. 2 million people. One simple idea.
Dr. Rohm hosted the PBS special The Model of Human Behavior and has shared the stage with Zig Ziglar, John Maxwell, Les Brown and Lou Holtz. He is often called the most "invited back" speaker.
The World Series ring
In 1996 the Arizona Diamondbacks brought Dr. Rohm in to help them draft players by personality style. In 2001 they won the World Series, and he received a ring inscribed "Fastest Ever." Turns out knowing what makes people tick works on a baseball diamond too.
The people who hire him tend to hire him again
Dr. Robert Rohm gives the greatest presentation on understanding how human interaction works that I have ever seen in my life! Information is power and everybody needs his information!
Some of the best training our company has ever received… Dr. Rohm is great!
In my 15-plus years of training with Century 21, I have never heard anyone as good as Robert Rohm! …He will make you laugh at yourself and others while he teaches…
Dr. Rohm's teaching should be required study for all and anyone…I only wish I had been exposed to this critical information twenty-five years earlier.
This training helped our brokers see the difference between being in the investment business and being in the people business.
Swipe for more
A keynote that changes how your people see each other
Dr. Rohm is funny, warm and clear. Your people laugh at themselves, see each other in a new light and walk out with a common language for getting along. Nobody gets put in a box. Everybody gets a little easier to work with.
- 01
Why Can't You Be Normal Like Me?
The four styles, and why the people around you do what they do.
- 02
Teams That Pull Together
Less friction, better meetings and fewer "personality conflicts."
- 03
Selling With Style
Read the customer, then sell the way they like to buy.
Teach the model. Build something that lasts.
Start online for $247. Many well-known DISC certifications cost around $3,000. Here you can start small and grow one step at a time.
- 1
DISC Profile Analyst
Learn to read and explain any DISC profile. Includes a free Leadership profile.
$247 - 2
Level 1 and 2 Certification
Become a Certified Human Behavior Consultant and lead your own DISC workshops.
See class dates - 3
Speakers Boot Camp
Get coached on stage and earn the Human Behavior Speaking Specialist seal.
Next: March 15–17, 2027 - 4
Master Trainer
Certify others and join the small group carrying Dr. Rohm's work forward.
About Master Trainer
“Taking the Level 1 DISC Certification from Personality Insights was the best decision I have ever made.” Laura B.
The books behind the talks
Dr. Rohm has written or co-written more than 20 books. These are the best places to start.
Positive Personality Profiles
The classic. Start here. $17.95
Who Do You Think You Are… Anyway?
Style blends, explained. $16.95
You've Got Style
A quick guide to relating to others. $15.95
The Four Pals picture books
Teach kids the four styles. 4-book set $29.98
Becoming Wiser with Dr. Rohm
Short, practical talks on people, family, faith and work. More than 100 episodes, rated 4.9 on Apple Podcasts.
Request the free 4‑part course on better relationships
- Four short lessons from Dr. Rohm
- His Tip of the Week: one practical idea you can use with the people in your life
- No cost. Email delivery is not active yet; requests are saved.
Before you start
Is DISC just another personality test?
Think of it as a language more than a test. DISC doesn't put you in a box or tell you who you can be. It shows how you tend to act and how the people around you tend to act, so you can work with each other instead of against each other. As Dr. Rohm puts it, “Different is not bad, it is just different!”
Is it backed by real research?
Yes. Dr. Rohm's DISC assessment was reviewed and certified by the Assessment Standards Institute, which analyzed more than 12,000 completed assessments. Scores held steady when people retook it (0.82 to 0.84), the scales were consistent (0.85 to 0.91), and it meets the EEOC's 80% guideline for fairness. Read the validity study.
How is this different from the free tests online?
A free test gives you a few letters. It doesn't tell you what to say to your teenager tonight, or how to run a meeting with four different styles in the room. Dr. Rohm's profiles are written in plain English with practical tips you can use right away. They start at $12.95.
Do you work with churches and schools?
All the time. His seminars are built for corporations, small businesses, schools, churches and government agencies. There are adult, teen and child profiles, and he hosts a free monthly Spiritual Teaching Series on Zoom.
Will Dr. Rohm teach my certification class himself?
Live certification classes are taught by certified trainers who use his material. Dr. Rohm himself speaks at events and leads private trainings and retreats. If you want him in the room, book him to speak.
The people in your life probably won't change. How you see them can.
Start with the free quiz. Two minutes from now you'll know your style, and the people around you will make a lot more sense.