Interrogative suggestibility among witnesses with mild intellectual disabilities: the use of an adaptation of the GSS

As part of the assessment of witnesses' ability to provide an account to the police and the courts, information is sometimes sought concerning their level of interrogative suggestibility. The most widely used measure for this is the Gudjonsson Suggestibility Scale (GSS, Gudjonsson 1997), which has two parallel forms (GSS 1 and GSS 2). However, the GSS relates to a verbally presented narrative, not to a visual event, as is more common to witness situations.