Its helpful to look at the same source of data in different ways – so mixing sampling techniques can give a clearer perspective – this will give what Glaser refers to as slices of data. I like to think of it more as same data, different lens or prism – casting outwardly a different light.
In my case – I want to combine interviews, with sketches and field notes and prospectively anecdotal comparison (reading what others say on x – e.g. magazine articles, film clips, essays – from those who have been closely involved in the group ‘lived experience’. What this is likely to yield are multiple versions of reality and knowledges. This is desirable and
“far from unbounded relativism. Instead, it is a proportionate view of the evidence, since, during comparison, biases of particular people and methods tend to reconcile themselves as the analyst discovers the underlying causes of variation” -p68
Barney G. Glaser & Anselm L. Strauss. 1967. The Discovery of Grounded Theory. London: Weidenfeld and Nicolson.