This exercise will use a subset of the European Social Survey (ESS) data. You will need access to the statistical software programme Stata to complete this task, and you may need your UK HE/FE Institutional username and password to access the ESS.

Returning to the analysis of trust in politicians (trstplt) between different countries, in Stata the relevant command would be.

anova trstplt country

                           Number of obs =    6165     R-squared     =  0.1327
                           Root MSE      = 2.15594     Adj R-squared =  0.1299

                  Source |  Partial SS    df       MS           F     Prob > F
              -----------+----------------------------------------------------
                   Model |  4369.97651    20  218.498826      47.01     0.0000
                         |
                 country |  4369.97651    20  218.498826      47.01     0.0000
                         |
                Residual |   28557.872  6144  4.64809114
              -----------+----------------------------------------------------
                   Total |  32927.8485  6164  5.34196115

The final figure in the row labelled 'country' shows the p-value for the test for significant variation between countries in the level of trust in politicians. Since this is very small you can easily reject the hypothesis that there is no between country variation.