Having dwelt on the relationships between pairs of variables, both in terms of scatterplot depictions and, lately, in terms of correlations, we can move on to the real core of our focus in analyzing psycholinguistic data: linear regression.

Creative commons – flickr – State Library and Archives of Florida – Florida Memory: Street vendor and patrons, Havana Cuba, 1950

— This image just caught my eye because of the yellows.

The next posts will build through:

1. A consideration of linear regression ideas;

2. Linear regression steps in R;

3. The groundwork for an extension of regression to mixed-effects modelling;

4. Mixed-effects modelling in R.

I will return to some steps repeatedly over time.