Witnesses of all ages struggle with cross-examination questions, often changing their testimony as aresult. In the laboratory, cross-examination-style questioning decreases both children’s and adults’ accu-racy. We examined the extent to which this effect varies with age. We interviewed children, adolescents,and adults (N = 128) about a film clip after a short delay. Eight months later we cross-examined partic-ipants on their original responses to some questions, and simply repeated other questions. Participantsof all ages were more likely to change their answers when cross-examined than when asked the samequestion again. Cross-examination negatively affected accuracy, although this effect decreased as ageincreased. Listening to an audio-recording of their original responses before the second interview reducedthe number of changes participants made in response to repeated questions, but not cross-examinationquestions. These data give cause for concern about the effect cross-examination has on the accuracy ofchild and adolescent witnesses