MenuDocumentationQuestionnaires and Survey DocumentsVolume A: User GuideVolume B – the CodebookBHPS Documentation – ThesaurusIndex termsRecord TypesWavesHelpCitationBAcknowledgementsPDF versionsBHPS Documentation and Questionnaires Record Type xivdata ivid interviewer id ivno interviewer number ivsex interviewer sex ivyob intv. year of birth ivystrt year started with nop ivyend year finished with nop