cardinale               Nutrient experiment on patches of algae in
                        Californian streams.
ess.dk                  Subset of four variables and interviewer number
                        from the European Social Survey, round 4 (2008)
                        Danish sample.
ess4.gb                 British attitudes towards the welfare state.
lavaan.survey           Complex survey analysis of structural equation
                        models (SEM)
lavaan.survey-package   Complex survey analysis of structural equation
                        models (SEM)
liss                    Internet use in a panel data set.
pisa.be.2003            Belgian school childrens' math efficacy and
                        measured ability in the PISA study.
pval.pFsum              F test for model fit of complex survey
                        structural equation models
