Criteria is typically a plural noun referring to standards on which a judgement can be made. Its singular form is criterion, but evidence shows that criteria is frequently used as a singular as …

Criteria are often the particular requirements that someone or something must meet in order to be considered or qualify for something. An applicant for a job may be evaluated based on several …

plural of criterion (Definition of criteria from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

In standard usage, the plural is generally criteria, although criterions is sometimes used as well. Properly speaking, the form criteria should never be a singular noun, and phrases like this …

Definition of criterion noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Although criteria is sometimes used as a singular, most often in speech and rather infrequently in edited prose, it continues strongly in use as a plural in standard English, with criterion as the …

Information about all of the scholarships and eligibility criteria can be found here.