PSID staff has created videos as a tool for training interviewers. The content, in these videos may 
    also be useful to users of the data, providing an introduction to the survey as well as an overview 
    of study terminology and different sections of the instrument. 
    
    
    
    
    
        * The 7 digit Sample-ID mentioned in the training video is only used during data collection and is 
    not on our release files. Instead, data users should use 68ID (ER30001) in conjunction with 
    Person Number (ER30002) to identify each individual.