Upvote:2
A Standard Visitor visa is the correct option. In addition to fulfilling the suitability and eligibility criteria as a visitor, if you’re visiting to study you must also show that you fulfil the requirements relating to the type of study you will be doing.
For example, to do a short piece of research you must prove that:
- you’re at least 16 years old
- you’re already enrolled on a course overseas that is the equivalent of a UK degree
- you’ve been accepted by a UK higher education institution to take part in research that’s relevant to the course you’re studying overseas.
The institution where you’ll ve doing your research should be able to guide you.