De or het studentenscriptie?

The correct Dutch article is:

de studentenscriptie

Rule Words ending in -tie and -sie: almost always de. See the rule

How to use studentenscriptie

the studentenscriptiede studentenscriptie
this studentenscriptiedeze studentenscriptie
that studentenscriptiedie studentenscriptie
our studentenscriptieonze studentenscriptie
your studentenscriptiejouw studentenscriptie
every studentenscriptieelke studentenscriptie
which studentenscriptie?welke studentenscriptie?
a big studentenscriptie / the big studentenscriptieeen grote studentenscriptie, de grote studentenscriptie