Millisecond Forums

This is my first post. I would like to ask you abour the theoretical sense of a choice I have to make before coding the experiment on Inquisit.

I'm designing an experiment with four target categories (one for each continent on Earth but Antartica, represented by pictures) and two attribute categories (good vs. bad, represented by words). The goal of the experiment is to compare the d-score of each case to see if my participants have a positive or negative bias towards any of the continents. In order to achieve that, I think that the best option is to run five separate ST-IAT, more or less like Bluemke and Friese (2008) did.
Something like:
ST-IAT 1 first block: good+Europe v bad
ST-IAT 1 second block: good v bad+Europe
ST-IAT 2 first block: bad v good+Africa
ST-IAT 2 second block: bad+Africa v good
ST-IAT 3 first block: good+America v bad
ST-IAT 3 second block: good v bad+America
ST-IAT 4 first block: bad v good+Asia
ST-IAT 4 second block: bad+Asia v good

My question is: would it make sense, conceptually speaking, to make a unique ST-IAT instead of five separate ones, in which all the target categories would be showed? In other words: is a good idea to show a mix of different target categories in the same ST-IAT?
Something like:
ST-IAT first block: good+Continents v bad
ST-IAT second block: good v bad+Continents
(where the Continents stimulus would be displayed on a randomized order along with the attributes).
Trial example: great, America, disgusting, Europe, yucky, Asia, triumph, Asia, rotten, joy, glad, sad, Africa, happy...

I'm not sure if I've been able to explain my idea. Please feel free to comment. Any help will be welcome!

Thank you for your attention.

Kind regards,
Iksas