Statistique appliquée à la psychologie II
[PSY1351]
[45h + 30h] 6 credits
This course is taught in the 2d semester.
Teacher(s): Bernadette Govaerts
Language: French
Level: First
Aims
- to recognise which method is to be used for a given problem
- to use and to apply each tool in various situations, namely with the help of statistics software
- to take up systematic steps in order to resolve a problem, from the choice of the method, its application, its validation, up to the interpretation of the results obtained
- to understand and to be able to explain the concepts and hypotheses underlying the methods used
- to have a good view on the fields of application of statistics in Psychology and on the situations they will have to face.
Main themes
- Summary of data tables with more than two variables. Principal components analysis and factorial analysis
- Complements of statistical inference: chi-square test of adjustment (one and two variables and normality test)
- Some non-parametric tests. Power and computing of samples sizes. Tests on 1 and 2 correlation coefficients
- Variance analysis: variance analysis with one criterion: model, test statistics, hypotheses verification. Multiple comparisons tests. Variance analysis with two criterions (fixed random and mixed model). Basic model for repeated measures.
- Single and multiple linear regression: single linear regression: model, least-square adjustment, inference on parameters and prediction. Multiple linear regression. Validation of a regression model (residual analysis, multicollinearity, research of outlying points...).
- Initiation to a statistics software and integration of the tools in real problems.
Content and teaching methods
The main fields tackled are:
- Methodology of the statistical analysis : working out of the questions, preparation of the data, exploratory analysis of the data, choice of an analysis method, validation of the hypotheses, interpretation of the results and writing of a report.
- Descriptive statistics with more than two variables: summary of data tables with more than two variables. Principal component analysis and factorial analysis.
- Statistical inference (complements): chi-square adjustment test (one and two variables and normality test). Main non-parametric tests. Power and computing of samples sizes. Tests on 1 and 2 correlation coefficients.
- Variance analysis: variance analysis with one criterion: model, test statistics, hypotheses verification. Multiple comparisons tests. Variance analysis with two criterions (fixed random and mixed model). Basic model for repeated measures.
- Linear regression: single linear regression: model, least-square adjustment, inference on parameters and prediction. Multiple linear regression. Validation of a regression model.
The students will learn how to use a statistics software and will have to apply all the statistical tools considered in the course and in the course "Statistics applied to Psychology 1" with this software.
Other information (prerequisite, evaluation (assessment methods), course materials recommended readings, ...)
- one written exam, one exam on the statistics software and one project
Reference book of the course "Statistical methods in human sciences" by D.C. Howell.
Course outline with the presented transparencies and course outline with the computer exercises.