Experimental psychology. Experimental psychology refers to work done by those who apply experimental methods to psychological study and the processes that underlie it.
1 Baby talk at 18 months. 2  Babies at this age say up to 10 simple words and can point to people, objects, and body parts you name for them. 3  They repeat words or sounds they hear you say, like the last word in a sentence. Baby talk at 12 months. 2  Most babies say a few simple words like mama and dadda by the end of 12 months -- and now know what they're saying.
When Do Babies Start Talking? If you're wondering when your little one will say mama or dada, find out what age babies start to talk and improve language development. Here's what you should know about when babies babble and reach the important baby milestone of talking. So far your baby's only way to communicate has been to cry.