Our TACT study investigates whether children believe written material or spoken language is more trustworthy. The study involves children watching a video of two people naming unfamiliar objects by either reading the name from a piece of paper or saying the name. The child is then asked which name they think is right and which informant they believe is more trustworthy. The children are also given a WPPSI vocabulary test and play a words and pictures matching task. This study is still in the recruitment process and we hope to work with Montessori schools in Boston.