If you are a graduate student it tells the school if you are prepared to be a teaching assistant to give lectures or not. If you score poorly you will end up being a grader or a lab guy.

You will also have to probably take a speak test and take classes in conversation.

The scores are used to interpret how well a non English speaking person will function in an English speaking society. The higher the score the better. Although, there is no specific passing or failing score for the TOEFL -Test of English as a Foreign Language – each college/university etc. decides what scores or ranges of scores it accepts. Requirements will vary based on info that may include; the field of study, the level of study (graduate or undergraduate), whether one will be a teaching assistant, whether the institution offers special courses in English as a foreign or second language etc. The total scoring range is from 310 to 677. Anyway it was last year. And the scores are good for two years.

TOEFL = test of English as a foreign language

The score indicates proficiency in the English language and is used to determine employment qualification for teaching positions, primarily.

Test of English as a Foreign Language. American colleges often require a certain proficiency in English from its foreign students, so they will specify you have taken the TOEFL test and passed with a certain score as a requirement for admission.

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What does TOEFL score mean?