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spss01.avi
(81 MB) |
spss01.avi
(uncompressed version 570 MB) |
Statistical tests. Questionnaire structure overview: open, closed, multiple closed answers, nominal, ordinal, scale variable, missing values. |
spss02.avi
(126 MB) |
spss02.avi
(uncompressed version 899 MB) |
SPSS program overview: data view and variable view, output window. SPSS variables: types (text, numerical, date), missing data, measures (scale, ordinal, nominal), variable labels, value labels, missing value label, missing values. Exercise: build variables for the whole example’s questionnaire. Missing data: subject’s missing data, system missing data. SPSS cases and variables, output window. Menus overview. Buttons overview. View labels. Importing data from Excel files, delimited text files, fixed text files. |
spss03.avi
(107 MB) |
spss03.avi
(uncompressed version 683 MB) |
Univariate analysis: frequencies, descriptive statistics, contingency tables and one-dimensional chi-square test, Student’s t test for one population, sign (binomial) test. Bivariate analysis techniques: comparing means, Student’s t test for two unpaired populations, analysis of variance, tests’ significance. |
spss04.avi
(145 MB) |
spss04.avi
(uncompressed version 819 MB) |
Difference between paired and
not paired data. Pearson and Spearman’s bivariate correlation. Partial
and spurious correlations. Student’s t test for paired data. Graphs: bar charts, pie charts, chart editor, element properties, histograms, changing the binning, boxplots, excluding categories, scatterplots, three dimensional bar plots. Exercises with graphs: relation analysis through contingency tables and chi-square (nominal-nominal), through boxplots (nominal-scale), through scatterplots (scale-scale). |
spss05.avi
(191 MB) |
spss05.avi
(uncompressed version 1050 MB) |
Normality assumption and tests: histogram, skewness, kurtosis, Q-Q plot, Kolmogorov-Smirnov test. Sorting files. Cases splitting, weighting and filtering. Recode into different variables. Recode into same variable. Converting a scale variable into an ordinal variable through grouping. Compute new variables: functions, usage of MEAN function, boolean expressions. |
spss06.avi
(175 MB) |
spss06.avi
(uncompressed version 991 MB) |
Usage of MISSING
function. Count values. Exercises on variable calculation. Date and time
operations. Missing values replacement.
Weighted indexes, indexes for binary variables.
Examples on index building with SPSS. |
spss07.avi
(101 MB) |
spss07.avi
(uncompressed version 547 MB) |
Regression, linear regression, coefficients, R-square,
residuals, residual histogram, graph in scatterplot. Non-linear
regressions. Logistic regression. Non parametric tests. Mann-Whitney U, Kruskal-Wallis. |
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