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Multilevel modelling and time series analysis in ... - ERSO - Swov

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3.2 Classical l<strong>in</strong>ear regression modelsThe result (see the Output-w<strong>in</strong>dow stated below) shows a highly significantdecrease <strong>in</strong> the count of fatalities; this is expla<strong>in</strong>ed <strong>in</strong> the coefficients-table: The variable “Year/Month” is negative (-0.520 for the st<strong>and</strong>ardizedcoefficient Beta, the unst<strong>and</strong>ardized coefficients can be used on the orig<strong>in</strong>aldata with fomula 3.2.1 <strong>in</strong> the correspond<strong>in</strong>g chapter <strong>in</strong> the methodologyreport) <strong>and</strong> shows a very “high” significance of < 0.0001: a significancevalue of less than 0.05 means that the variation expla<strong>in</strong>ed by the model isnot due to change.Furthermore, the regression model has a reasonable fit: The ANOVA table reports a significant F statistic because its significancevalue is below 0.05. R Square <strong>in</strong> the Model Summary table shows that the regression expla<strong>in</strong>s27.0% of the variance of the data.P r o j e c t c o - f i n a n c e d b y t h e E u r o p e a n C o m m i s s i o n , D i r e c t o r a t e - G e n e r a l T r a n s p o r t a n d E n e r g yP a g e 1 1 3

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