9. ADDITIONAL NOTES.......................................................... 16  
9A. HOUSEHOLDS WITH NO FAMILY OR FINANCIAL RESPONDENTS .............................. 16  
9B. UNFOLDING BRACKET VARIABLES AND IMPUTATIONS.................................... 16  
9C. 2022 UNFOLDINGS ISSUES .................................................... 18  
9D. MODULES FOR THE 2022 DATA COLLECTION......................................... 18  
9E. EXPLANATION OF THE DIFFERENCE BETWEEN TRACKER AND CORE DATA RELEASES ............... 19  
9F. ENHANCED FACE-TO-FACE SAMPLE DESIGN AND CONTENT................................ 19  
9G. WEB .................................................................... 20  
9H. QUESTIONNAIRE CHANGES...................................................... 22  
9I. WHOLE BLOOD DRAWS......................................................... 22  
9J. ERRATA .................................................................. 22  
9K. SUMMARY OF DATA MODEL (DM) CHANGES DURING 2022 PRODUCTION....................... 25  
9L. NEW/MODIFIED QUESTIONS IN HRS 2022.......................................... 25  
9M. MAJOR CHANGES TO THE INSTRUMENT.............................................. 26  
10. OBTAINING THE DATA....................................................... 28  
10A. REGISTRATION AND DOWNLOADING THE DATA........................................ 28  
10B. CONDITIONS OF USE ........................................................ 28  
10C. PUBLICATIONS BASED ON DATA................................................. 28  
11. IF YOU NEED TO KNOW MORE................................................. 29  
11A. HRS INTERNET SITE ....................................................... 29  
11B. CONTACT INFORMATION: ..................................................... 29  
APPENDIX...................................................................... I  
A. EXAMPLES OF SUB-HOUSEHOLD AND RESPONDENT PERSON NUMBER AND OTHER PERSON  
NUMBER ASSIGNMENTS............................................................ I  
A1. MARRIED COUPLE STAYS MARRIED..................................................I  
A2. COUPLE DIVORCES............................................................II  
A3. ONE OR BOTH RESPONDENTS DIE..................................................II  
A4. SINGLE RESPONDENT MARRIES ...................................................II  
A5. COUPLE DIVORCES, ONE RESPONDENT REMARRIES AND DIVORCES .......................... III  
A6. COUPLE DIVORCES AND MARRIES AGAIN.............................................IV  
A7. MARRIED COUPLE WITH CHILDREN AND SIBLINGS ......................................IV  
A8. COUPLE WITH CHILDREN AND SIBLINGS DIVORCES.......................................V  
A9. COUPLE DIVORCES, ONE RESPONDENT REMARRIES, BOTH SPLIT-OFF HOUSEHOLDS HAVE NEW MEMBERS .VI  
B. 2022 PRODUCTION DATA MODEL (DM) CHANGES (AS OF 1/31/2024)................ VII  
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February 2024, Version 1.0