1 / 62

Getting to Know Data Sources

Getting to Know Data Sources. Geographic, Statistical and Government Information Centre. GSG Team Susan Mowers. Outline. Data available at your Library! Statistics Canada’s surveys The Census from questionnaire  to data  to the media What is special about longitudinal surveys?

ronnie
Download Presentation

Getting to Know Data Sources

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Getting to Know Data Sources Geographic, Statistical and Government Information Centre GSG TeamSusan Mowers SOC4112

  2. Outline • Data available at your Library! • Statistics Canada’s surveys • The Census from questionnaire  to data  to the media • What is special about longitudinal surveys? • Anonymised data (public-use microdata) and confidential data and WHERE to FIND the data • Quiz handout • Break • Lab - Quiz • Census of Population – Content and structure GEG3104

  3. Data at your library … SOC4112

  4. Data Services at GSG • Geographic Statistical and Government INFORMATION CENTRE • GSG helps students to find, access and use: • Survey and related data • Technical support and documentation for data • Statistical and GIS software • Government and public policy information • Contact : Morisset Library, Room 308 in person smowers@uottawa.caby email GEG3104

  5. Access to Survey Data ! SOC4112

  6. Access to Data at uOttawa DATA DATA DATA!! VIA Data Liberation Initiative (DLI) Partnership between 74 Canadian universities + Statistics Canada. … Commercial use of DLI data is strictly prohibited. …also Inter-university Consortium of Political and Social Research DATA GEG3104

  7. What DLI data can you get? uOttawa students can access all DLI data from Statistics Canada through GSG (3rd floor Morisset) and the Web including… - individual-level public-use microdata, - statistics at a detailed level of geography, - geographic data For specific questions, email your DLI contact: smowers@uottawa.ca GEG3104

  8. What data can’t you get through DLI/Your Library? uOttawa [graduate] students, in order to access : - confidential data or - longitudinal data … must make an application to the Research Data Centre programme at the University of Ottawa, see the COOL RDC (Research Data Centre) http://www.coolrdc-cldrcoo.ca/about_e.php For specific questions about applying, email the COOL RDC: coolrdc@uottawa.ca GEG3104

  9. Where it all starts SOC4112

  10. 2006 Census May 16, 2006 Statistics Canada carries out survey based on defined questions GEG3104

  11. From the questionnaire: May 16, 2006 … to statistics in the popular media September 13, 2007 Married people now in the minority; for the first time in Canada, most adults are not legally wed, census shows. …more people are choosing common law over marriage. …Public-use microdata to be released this summer (2009) The 2006 Census of Population GEG3104

  12. Two Census Questionnaires– SHORT (2A) (100%) and LONG (2B) Questionnaire, (20%)For example, both questionnaires ask common questions, … family/relationship type… etc. GEG3104

  13. 2001 Census Public Use Microdata File (PUMF) on Individuals … SAMPLING : • The one fifth (2B long questionnaire) sample collected during the 2001 Census. • Selecting the sample of individuals from the first-phase sample. • The end result is a self-weighting sample, representing 2.8% of the target universe. GEG3104

  14. Public-use microdata file (anonymous) 0000312141100119820012122222210020982001212222224011211112411121211122050201971119710212122222252110261212043001409557204113130221119999019787878797022214112714124003150006166112322222222211111726261622122226666666362120000000203202222242220000222041411011011021111111221110000002100000000021000000000100 0000411001100111011021222222210020092002122222220211111112312121112112081201938119380441222222211110522012039010075047210311910122335204060587878703042213034207083004000014200071112221222117215756565655555556666666565650005555002102221111111100000011111000011011122121221110110101100001101011000000000000 Person “x” Person “y” Raw data (Confidential/Master file) Research Data Centres Data Liberation Initiative Statistics in the literature and popular media Aggregate data (Statistics) Publicly available GEG3104

  15. to become Statistics In other words, statistics come from… …DATA ! Data are processed Person 1…2 … GEG3104

  16. Comparing Longitudinal surveys and Cross-sectional surveys SOC4112

  17. Methodology for every Statistics Canada (STC) survey avail from STC Web site at http://www.statcan.gc.ca/imdb-bmdi/indexA-eng.htm GEG3104

  18. Statistics Canada’s “Kids” Survey GEG3104

  19. Longitudinal Surveys • The survey follows the same panel or sample of respondents over time. • “By linking records for the same panel of respondents over time, a longitudinal survey permits the study of relationships between factors measured in one period (e.g., aspirations, attitudes, behaviours, and achievement) with outcomes measured in future time periods (e.g., educational attainment, occupational outcomes, earnings). “ http://www.pisa.gc.ca/yits.shtml • Compared to cross-sectional surveys : cross-sectional surveys are snapshot surveys in time, e.g., the Census of Population GEG3104

  20. How often is the Census of Population of Canada carried out ? … every ___ years GEG3104

  21. Is the Census of Population designed as a longitudinal or cross-sectional survey? GEG3104

  22. Other surveys SOC4112

  23. Statistics Canada Surveys of Households • Census every 5 years • General Social Surveys every year • Special Surveys, various health, labour force, longitudinal survey of children and youth… • Post-censal surveys, every 5 or 10 years : Aboriginal Peoples Survey; Ethnic Diversity Survey; Participation and Activity Limitations Survey GEG3104

  24. For example, the General Social Survey (GSS) - Gathers data on social trends to monitor changes in the living conditions and wellbeing over time; - Topics change and repeat … GEG3104

  25. General Social Surveys (GSS) GEG3104

  26. Browse surveys available from STC DLI • All are DLI surveys comprise cross-sectional survey data • Browse collection of surveys from DLI -click here GEG3104

  27. Other sources, for example… UNdata Comprehensive international statistical database covering all countries and all areas. Includes information from numerous international data sources. Formerly known as UN Common Database.   GEG3104

  28. Hands-on, we will look at Census data and documentation via the … • Statistics Canada Web site • <odesi> data portal GEG3104

  29. Now for …quick quiz handout and break GEG3104

  30. Quick Quiz GEG3104

  31. Quick Quiz GEG3104

  32. Hands-on In what age group did the numbers of common-law relationships rise the fastest between 2001 and 2006, was it in: - young adults, - middle-aged adults or - seniors?

  33. Our news story from the … September 13, 2007 … comes from this official Statistics Canada source : right click here: http://www.statcan.gc.ca/daily-quotidien/070912/dq070912a-eng.htm Let’s find out what age group did the numbers of common-law relationships rise the fastest was it in: young adults, middle-aged adults or seniors?

  34. Scroll down to browse The Daily article, then click on …

  35. Where would you find more details on common-law couples versus married couples?

  36. Click here for more details on common-law couples versus married couples

  37. Common-law unions rose fastest among… GEG3104

  38. Methodology for every Statistics Canada (STC) survey avail from STC Web site… GEG3104

  39. GEG3104

  40. Are these groups represented in the Census of Population? Right click here: http://www.statcan.gc.ca/cgi-bin/imdb/p2SV.pl?Function=getSurvey&SDDS=3901&lang=en&db=imdb&adm=8&dis=2 __ Canadians posted overseas? __ Foreign-students with study visas? __ Canadians without a fixed address?

  41. Access Census data SOC4112

  42. Two methods of data access <odesi> Ontario <odesi> Data Portal has a good selection of DLI data, also of public opinion poll data and ICPSR data www.odesi.ca Not yet on <odesi>, GSG data server, e.g., https://login.proxy.bib.uottawa.ca/login?url=http://gsg.uottawa.ca/data-license/census_of_population/2001/eng/pumf_ind More information, smowers@uottawa.ca GEG3104

  43. Right click here:http://www.odesi.ca/

  44. Search Census 2001 individuals

  45. Scroll down to: 2001 Census of Population [Canada] Public Use Microdata File (PUMF): Individuals File (revision 2)

  46. Click on View in ODESI

  47. Note drill-down zone: Metadata and Variable description, and results zone GEG3104

  48. Click on Metadata, Study Description, Bibliographic citation and scroll all the way down to …

  49. Now click on Study scope, scroll down and note “Universe” …

  50. Click on Other documentation, then on 2001 Census Introduction and Reference Guides

More Related