Yes, speaking toddler-ese to our one year old son works to calm tantrums. It worked the first time I tried it and then didn’t seem to be working, so I quit because it’s kind of embarrassing to do, especially in front of other adults. I started again, at home, because I had to do something. Gradually, it started to work more and more. I am now a convert. He quiets down now much faster. He looks me in the eye and looks at me like I understand. I am so happy!! Thank you Dr. Karp.