3V0216.04 Robby Pretending to Speak for Dapper Dan;
Peggy talking to toys and Scurry

One of the toys not shown on videotape is Dapper Dan — a baby-size cloth doll. After the session, I propped Dapper Dan in the corner of Peggy’s playpen and left her with the two older children reading in the library. From my reading alcove, upstairs I heard a conversation going on. Robby “hid” outside the playpen behind Dapper Dan. When Peggy started talking to Dapper Dan, he responded in the appropriate turn. After a while this lost interest for him. Over following days, Peggy addressed Dapper Dan on occasion and received no response and has stopped doing so (recall she also used to address Scurry with the same expectation).

Can we figure out some simple experiment which will permit us to determine how Peggy classifies things into speakers and non-speakers (or interactors and non-interactors)?