What we have done QDA II. 2014 winter semester

Back to the main page       Syllabus QDA II. (winter 2014)

1. class (8/10/2014)  Revision of what we have done in Design of Quantitative Research I.
  Univariate descriptive statistics for different type of variables (FREQUENCIES, DESCRIPTIVES), see 2. Descriptive statistics - univariate analysis
  Bivariate (and multivariate) analysis using crosstabulation (CROSSTABS), see 3. Contingency tables: bivariate analysis of categorical data
Data ISSP 2007 - Leisure Time and Sports, the Czech Republic (HiSo version, English)  (last revision for HiSo 27/5/2014)
      Czech questionnaire (it applies to original Czech variable names), Basic questionnaire in English (only the core of the module variables)   More information on ISSP.org (You can download whole international data set)
Syntax QDA2. 8/10/2014
No homework


2. class (15/10/14)  
1. Simple elaboration (mostly revision from QDA I.), i.e. 3-fold Crosstabulation with controlling factor, see QDA I. handout 4. Contingency tables: multivariate analysis and elaboration
Data transformation: simple recording (ordinal variable into dichotomous one).
Data ISSP 2007 - Leisure Time and Sports, CR  (last revision for HiSo 27/5/2014)
Syntax QDA2. 15/10/2014
Homework assignment no. 1


3. class (22/10/14)  
Simple elaboration (mostly revision from QDA I.):
 1. Crosstabulation
 2. Association / correlation coefficents within CROSSTABS: Goodman&Kruskal's (GAMMA), Kendaull's Tau B (BTAU), Spearman's Rho (CORR).
see QDA I. handout 4. Contingency tables: multivariate analysis and elaboration (slides ca 19-25)
Data ISSP 2007 - Leisure Time and Sports, CR  (last revision for HiSo 27/5/2014)
Syntax QDA2. 22/10/2014
Homework assignment no. 2


4. class (29/10/14)  
1. once more some notes on simple Elaboration (using association and correlation coefficients), see QDA I. handout 4. Contingency tables: multivariate analysis and elaboration (slides ca 19-25)
2. Introduction into the Inferential statistics (1): Standard error and Confidence intervals of a numerical variables, i.e. mean. (EXAMINE), see Standard error and confidence interval (1.)
Data ISSP 2007 - Leisure Time and Sports, CR  (last revision for HiSo 27/5/2014)
Syntax QDA2. 29/10/2014
Homework assignment no. 3


5. class (5/11/14)  
1. A note on recoding variables
2. Introduction into the Inferential statistics (2): Standard error and Confidence intervals for mean, see Standard error and confidence interval (1.)
 Bivariate analysis - CI of mean in subgroups (EXAMINE, using Descriptives in ONEWAY)
 Graphical visualization of CI (GRAPH ERRORBAR)
Data ISSP 2007 - Leisure Time and Sports, CR  (last revision for HiSo 27/5/2014)
Syntax QDA2. 5/11/2014
Homework assignment no. 4


6. class (12/11/14)  
Confidence interval of mean, see Standard error and confidence interval (1.)
 Graphical visualization of CI (GRAPH ERRORBAR)
 Multivariate (3-fold) analysis, i.e. means in subgroups (with a controlling variable)
Data ISSP 2007 - Leisure Time and Sports, CR  (last revision for HiSo 27/5/2014)
Syntax QDA2. 12/11/2014
Homework assignment no. 5


7. class (19/11/14)  
A note on recoding variables (a trick to quickly reverse a scale)
Confidence interval of proportion (%), see Confidence interval for proportion (2.)
Data ISSP 2007 - Leisure Time and Sports, CR  (last revision for HiSo 27/5/2014)
Syntax QDA2. 12/11/2014   Original complete SPSS syntax routine for calculation of confidence interval of proportion/percentage (For CI of % choose: Large-Sample Confidence Interval for a Single Population Proportion. And don't forget, if you use this script (e.g. in diploma thesis) you should credit it, cite: Gwilym Pryce 2002. Large-Sample Confidence Interval for a Single Population Proportion. Inference for Proportions. Available at: http://www.spsstools.net/Syntax/Distributions/ProportionTestsAndCI.txt.  
You can also use Web calculator Confidence Interval of a Proportion (more on this next time).
Homework assignment no. 6


8. class (3/12/14)  
It was not regular seminar, instead we were improving skills for data manipulation (FILTER, WEIGHT, SORT CASES, SPLIT FILE)
Syntax QDA2. 3/12/2014


9. class (10/12/14)  
Testing statistical hypotheses, introduction (1):  - Tests for numeric variables: Z-test, T-Tests and simple Analysis of Variance (One Way ANOVA)  -  - Tests for categorical variables: Chi-square goodness of fit test (1 dimensional - Equality hypothesis)
Syntax QDA2. 10/12/2014
Homework assignment no. ?


10. class (17/12/14)  
Statistical tests for categorical variables:
 - 1 dimensional Chi-square goodness of fit test - Specific values hypothesis (i.e. for time comparison)
 - 2 dimensional Chi-square goodness of fit test - Homogeneity/independency in contingency table
Relationships/associations within contingency table: Adjusted residuals and Sign scheme.
Odds Ratio (not only for mobility tables)
Direct Standardization (weighting):
 - for assessment of historical changes (controlling for structural changes)
 - within contingency table (controlling for a intervening factor). See (pp. 28-30 in chapter 2) - More on tables (Chap. 2 in Treiman 2009)
Syntax QDA2. 17/12/2014
Homework assignment no. ?


Read our courses presentations, handouts and other materials QDA I. and QDA II. Basic introduction into logic of descriptive, bivariate and simple multivariate statistics is well explained in:

Babbie, Earl. 1995. The Practice of Social Research. Wadsworth Publishing; 7 edition.
   Elementary Analyses Chapter 15, Pp. 375-394  (descriptive statistics, groups comparison, bivariate analysis)
   The Elaboration Model Chapter 16, Pp. 395-412  (multivariate analysis, logic of elaboration)
Elaborating bivariate relationships (pp. 161-170) in de Vaus, D., A. 1985. Surveys in Social Research, First Edition, Hemel Hempstead/Winchester, Mass. : Allen & Unwin Ltd.   (excellent simple examples of multivariate analysis with 2x2x2 tables and principle of elaboration) This is highly recommended text.
Cross-tabulations and More on tables (selected parts of chapters 1 and 2) in Treiman, D. J. 2009. Quantitative data analysis: doing social research to test ideas San Francisco: Jossey-Bass.  (excellent comment and examples of interpreting crosstabulation, elaboration, interaction/additive effects)  This is highly recommended text.
Quantitative data analysis   Chapter 14 in Bryman, A. 2008. Social research methods. Oxford: Oxford University Press.  online resources (data, tests)  (descriptive statistics as well as testing hypothesis)


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