“…Furthermore, courtroom questioning can be unusual and difficult for children, who are accustomed to being tested by knowledgeable adults (Lyon, ), and often feel pressured to answer adults’ questions (Earhart, La Rooy, Brubacher, & Lamb, ). Lawyers may also question children using complicated prompts about events that occurred long ago (Andrews, Lamb, & Lyon, ; Hanna, Davies, Crothers, & Henderson, 2012; Spencer & Lamb, ), making it critical to prepare children for their unique roles as witnesses by instructing them not to guess and to express uncertainty when they do not know the answers to questions (i.e., the “don't know” ground rule).…”