E.M.
Just had my 2.5 yr old evaluated for stuttering. Hers appeared
Out of no where! The speech therapist told me whole word repetition is less worrisome than if she stutters on the first letter like c-c-c-can. Also number of repetitions is important. Two to three are indicative of developmentally typical stuttering. More, like 5-10+, more indicative of a true stutter. Most will disappear on their own after a few months. Everything I have read says to completely ignore it so that the child doesn't become "aware" it is strange and start to fear talking. My daughter didn't stutter much at all in front of the therapist because she. Was being shy and hardly talking!
Good luck!