List members may be interested in the following training course by the National Centre for Research Methods (NCRM):
Course: Log-linear modelling of contingency tables
Date and place: 30-31 May 2013, Southampton
Presenter: Professor John 'Mac' McDonald
Fees: £60 for UK registered postgraduate students; £120 for staff at UK academic institutions, ESRC funded researchers and registered charity organisations; £440 for all other participants.
Further info and registration: http://www.ncrm.ac.uk/training/show.php?article=3891
Data analysts are often interested in describing the association(s) between cross-tabulated categorical variables. Log-linear models are commonly used for modelling contingency tables, where the cell counts are treated as the response variable. A classic example is a 2-way social mobility table, where father's social class is cross-classified by son's social class, and we are interested in describing the association (interaction structure). Standard models for square tables discussed include quasi-independence, quasi-symmetry and symmetry as well as newer models which impose interpretable structures on the interactions, such as the UNIDIFF and row-column association models from sociology. For higher-dimensional tables, log-linear models can be used to study whether 2-way, 3-way or higher-way associations exist among the variables and to estimate their strength of association. Course emphasis will be placed on the usefulness and interpretation of the log-linear models presented using ideas such as conditional independence and mathematical graphs which visually represent the conditional independence structure between variables.
The course is suitable for those who are completely new to R, but some practice with R before the course is strongly recommended (a worksheet will be provided). Familiarity with linear regression will be assumed, but some basic knowledge of logistic regression and/or log-linear modelling is desirable as well as familiarity with the concepts of odds and odds ratios.
For further information and to register please see http://www.ncrm.ac.uk/training/show.php?article=3891
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Kaisa Puustinen
Communications Manager
National Centre for Research Methods
Social Sciences
University of Southampton
Tel. 023 8059 7473
Email. [log in to unmask]
Web. www.ncrm.ac.uk
Twitter. http://twitter.com/NCRMUK
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