A main source for the ages
Helping and Cooperation at 14 Months of Age
Felix Warneken, Michael Tomasello · 2007 · Infancy
- Children
- About 24 babies
- Where
- Germany
- Ages
- 14 months
- How
- Researchers tested babies in a lab
- What it found
- 18 of 24 babies aged 14 months helped an adult at least once, usually by handing over something out of reach, within about 7 seconds.
- Limits
- A small group; they helped with simple reaching problems, not harder ones.