Coding of 'missing' in earlier and later versions of Wave 1 data of variable 'a_scghq2_dv'
I first accessed the Wave 1 dataset around 2012 at which time there was a ‘missing’ category for the derived variable ‘a_scghq2_dv’, but no 'inapplicable'.
I am now returning to Wave 1 data for a new analysis, and have loaded the most recent version of the Wave 1 data. However, I have noticed that variable 'a_scghq2_dv' now has both a ‘missing’ and an ‘inapplicable’ category, and that the N for the 'missing' is much lower than previously
Can I assume that in the original dataset the ‘missing’ and ‘inapplicable’ were combined into an overall ‘missing’ category, but that in the most recent version of the dataset the ‘missing’ and the ‘inapplicable’ categories have been differentiated?