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Applying DDI to a Longitudinal Study of Aging. Overview of Presentation  Content of MIDUS  Importance of DDI as Data Management  Process of Creating.

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Presentation on theme: "Applying DDI to a Longitudinal Study of Aging. Overview of Presentation  Content of MIDUS  Importance of DDI as Data Management  Process of Creating."— Presentation transcript:

1 Applying DDI to a Longitudinal Study of Aging

2 Overview of Presentation  Content of MIDUS  Importance of DDI as Data Management  Process of Creating MIDUS DDI Instances  Moving from DDI 2 to DDI 3

3 MIDUS (Midlife in the U.S.) Baseline: 1995-96 Harvard MacArthur Found. N=7,108 Twins/Siblings Followup: 2004-05 UW-Madison NIA Expanded content N=4,963 (75%)

4 MIDUS: Strengths and Complexities Multidisciplinary content Innovative design Multi-site data collection

5

6 MIDUS 2 Longitudinal Multi-project Participation M2 Survey N=5,555 Cognition N=4,512 Neuroscience n=332 Biomarker n=1,255 Daily Stress N=2,022 n=1,011 n=1,152 M1 Survey N=7,108

7 MIDUS: Strengths and Complexities Multidisciplinary content Aging as integrated bio-psycho-social process Innovative design Multi-site data collection Wide age range 25-74 baseline, ≈ 10 year wave interval Multiple sample cohorts

8 MIDUS 1 Sample (N=7,108) Main RDDSiblingsTwins MIDUS Samples and Timelines 2015 19952005

9 MIDUS 1 Sample (N=7,108) Main RDDSiblingsTwins MIDUS Samples and Timelines MIDUS 2 Main RDDSiblingsTwins 2015 19952005

10 MIDUS 1 Sample (N=7,108) Main RDDSiblingsTwins MIDUS Samples and Timelines MIDUS 2 Main RDDSiblingsTwins 2015 19952005 Milwaukee (N=592) New Midlife in Japan (N=1,032) New

11 MIDUS 1 Sample (N=7,108) Main RDDSiblingsTwins MIDUS Samples and Timelines MIDUS 2 Main RDDSiblingsTwins MIDUS 3 (2013) Main RDDSiblingsTwins 2015 19952005 Milwaukee (N=592) New Midlife in Japan (N=1,032) New MIDJA 2 (2013) ?

12 MIDUS 1 Sample (N=7,108) Main RDDSiblingsTwins MIDUS Samples and Timelines MIDUS 2 Main RDDSiblingsTwins MIDUS 3 (2013) Main RDDSiblingsTwins 2015 19952005 Milwaukee (N=592) New Midlife in Japan (N=1,032) New MIDJA 2 (2013) Refresher Sample (N≈2,659) RDD (N≈2,152) Milwaukee (N≈507) New ?

13 MIDUS 1 Sample (N=7,108) Main RDDSiblingsTwins Multiple Longitudinal Sample Cohorts MIDUS 2 Main RDDSiblingsTwins MIDUS 3 (2013) Main RDDSiblingsTwins 2015 19952005 Milwaukee (N=592) Midlife in Japan (N=1,032) MIDJA 2 (2013) Refresher Sample (N≈2,659) RDD (N≈2,152) Milwaukee (N≈507) ? 1 2 3 45

14 MIDUS: Strengths and Complexities Multidisciplinary content Aging as integrated bio-psycho-social process Innovative design Multi-site data collection Wide age range 25-74 baseline, ≈ 10 year wave interval Multiple sample cohorts Use of data – collaborative philosophy 450+ publications, top 10 data download (ICPSR)

15 Old MIDUS 1 Codebook MIDUS I MAIN MAIL QUESTIONNAIRE: SECTION A Var Var Name/ Question/Description Frequencies Position Question # 977 SA1 Using a scale from 0 to 10 where 0 means "the worst possible health" and 10 means "the best possible health," how would you rate your health these days? (See "Documentation of Scales.rtf") Male Female 0 WORST 2 6 1 4 9 2 6 4 3 31 34 4 54 61 5 134 179 6 172 157 7 433 381 8 622 548 9 278 320 10 BEST 102 135 98 REFUSED/MISSING 8 10. SYSTEM-MISSING (Did not complete SAQ) 309 243

16 Advantages of DDI/XML  Web fodder, online archives, ICPSR support  Web standard for data exchange  Integrate all electronic documentation  XML human and machine-readable, self-describing  Interoperabiltiy, no licenses  Hierarchical, extensible  Learning curve, cost/time efficiencies

17 MIDUS 2 DDI Codebooks  UW Implementation UW Implementation  With Hyperlinks With Hyperlinks  ICPSR Implementation ICPSR Implementation

18 MIDUS DDI 2 Codebooks  http://midus1-project1.ssc.wisc.edu/ http://midus1-project1.ssc.wisc.edu/  http://midus2-project1.ssc.wisc.edu/ http://midus2-project1.ssc.wisc.edu/  http://midus2-project2.ssc.wisc.edu/ http://midus2-project2.ssc.wisc.edu/  http://midus2-project3.ssc.wisc.edu/ http://midus2-project3.ssc.wisc.edu/  http://midus2-project4.ssc.wisc.edu/ http://midus2-project4.ssc.wisc.edu/  http://midus2-project5.ssc.wisc.edu/ http://midus2-project5.ssc.wisc.edu/  http://midus2-project1.ssc.wisc.edu/milwaukee/ http://midus2-project1.ssc.wisc.edu/milwaukee/  http://midus2-project1.ssc.wisc.edu/midja/ http://midus2-project1.ssc.wisc.edu/midja/

19 MIDUS DDI 3 Repository  http://midus.colectica.org/ http://midus.colectica.org/

20 MIDUS Documentation Data Files Web Codebooks and Documentation DDI 2 Spreadsheets Survey Source Code PDFs

21 Mapping MIDUS to DDI 3  Joint project between MIDUS and Colectica  Approximately 1 month timeframe  Main tool: Colectica  Repository  Designer  SDK

22 Mapping MIDUS to DDI 3 SourceDDI 3 Mapping Data FilesPhysicalInstance, Variable, VariableStatistics

23 Mapping MIDUS to DDI 3 SourceDDI 3 Mapping Data FilesPhysicalInstance, Variable, VariableStatistics Web documents and Codebooks StudyUnit, FundingInformation, OtherMaterial

24 Mapping MIDUS to DDI 3 SourceDDI 3 Mapping Data FilesPhysicalInstance, Variable, VariableStatistics Web documents and Codebooks StudyUnit, FundingInformation, OtherMaterial DDI 2 PhysicalInstance, Variable, QuestionItem, VariableStatistics

25 Mapping MIDUS to DDI 3 SourceDDI 3 Mapping Data FilesPhysicalInstance, Variable, VariableStatistics Web documents and Codebooks StudyUnit, FundingInformation, OtherMaterial DDI 2 PhysicalInstance, Variable, QuestionItem, VariableStatistics SpreadsheetsVariable, QuestionItem

26 Mapping MIDUS to DDI 3 SourceDDI 3 Mapping Data FilesPhysicalInstance, Variable, VariableStatistics Web documents and Codebooks StudyUnit, FundingInformation, OtherMaterial DDI 2 PhysicalInstance, Variable, QuestionItem, VariableStatistics SpreadsheetsVariable, QuestionItem CAI Source CodeInstrument, QuestionItem, ControlConstructSequence

27 Mapping MIDUS to DDI 3 SourceDDI 3 Mapping Data FilesPhysicalInstance, Variable, VariableStatistics Web documents and Codebooks StudyUnit, FundingInformation, OtherMaterial DDI 2 PhysicalInstance, Variable, QuestionItem, VariableStatistics SpreadsheetsVariable, QuestionItem CAI Source CodeInstrument, QuestionItem, ControlConstructSequence PDF DocumentsOtherMaterial

28 Resulting Documentation

29 Thank you Barry Radler – UW-Madison (bradler@wisc.edu) Jeremy Iverson – Colectica (jeremy@colectica.com) Dan Smith-Colectica (dan@colectica.com) midus.wisc.edu www.colectica.com

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