Document Type



A single experiment is reported which attempts to prevent or attenuate the distortion in memory produced by inaccurate postevent information. Specifically, after viewing a videotape, some participants received misleading information regarding the events depicted in the videotape. Further, some of these participants were given an inoculation procedure intended to educate them about the effects of misleading postevent information prior to receiving the misleading information. This material was presented in written form, videotape, or a combination of written and video form. Contrary to expectations, participants who were misled and received an inoculation procedure evidenced greatest memory distortion. Results are discussed in terms of the wording used in a warning about memory distortion.