Scarcely studied . Does it make sense ?
This is in the beginning of an abstract :

This research aims to analyze a non verbal discourse marker of modality which has been scarcely studied and which expresses obligation.
Thank you

Question

Scarcely studied . Does it make sense ?
This is in the beginning of an abstract :

This research aims  to  analyze  a non verbal discourse marker of modality which has been  scarcely studied and which expresses obligation.
Thank you

Answer

Yes, it makes sense. "Scarcely studied" means hardly or almost not studied.

Here are some examples of it used in context:  
https://www.linguee.com/english-spanish/translation/scarcely+studied.html

Answer

To make it clearer. This is the summary of a research about linguistics. I need to say a particular element of linguistics has not been studied enough and so I will talk about it.

Answer

What are you talking about? Could you please elaborate this in a simple way so that I can understand what you are trying to say.