The effect of age and reminders on witnesses’ responses to cross-examination-style questioning.

Witnesses of all ages struggle with cross-examination questions, often changing their testimony as a result. In the laboratory, cross-examination-style questioning decreases both children's and adults’ accuracy. 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 participants on their original responses to some questions, and simply repeated other questions. Participants of all ages were more likely to change their answers when cross-examined than when asked the same question again. Cross-examination negatively affected accuracy, although this effect decreased as age increased. Listening to an audio-recording of their original responses before the second interview reduced the number of changes participants made in response to repeated questions, but not cross-examination questions. These data give cause for concern about the effect cross-examination has on the accuracy of child and adolescent witnesses.