In more detail
Show relationships lets you record how parts of the analysis relate. An Empirical connection marks a link you can point to in the data. It carries a note saying why, and can carry an arrow pointing to the effect where one leads to the other.
Telling evidence from interpretation on the map helps a reader, a supervisor or an examiner see which links rest on the data and which you are proposing. Themescape draws what you record and suggests nothing.
In Themescape
Add a branch in Work mode in the Node network and choose Empirical, or write a row in the Connections tab with type evidenced or blank. Arrow is to, from or blank, and an arrow always points at the effect.
A short example
From the Working Well dataset
Boundaries and Overwork
Working definition: Weekend Creep to Blurred Work Hours: the same erosion of time boundaries over a different span.
Weekend CreepBlurred Work Hours
An Empirical connection between two codes in the same theme, as recorded in the Working Well sample. Made up data, nothing from a real study.