Is my 23-yr old daughter who started attending a college in UK from October 2018 considred a "full-time student"?

[Bun-chan]

My 23-yr old daughter started attending U of Cambridge (UK) from October 2018 full-time and is expected to study there for two years.  My question is this: Is it correct she is not considered a "full-time student" since she was there only 3 months (October, November and December) in 2018? Also, does this mean she cannot be not considered our "dependent"?

[NCperson]

https://www.irs.gov/pub/irs-pdf/p17.pdf

Page 26 (on the right) defines a student

What did your child do the first 9 months of the year.... the 5 months doesn’t need to be consecutive

To take the tax credit, child must be under 24 years old and a full time student

[Bun-chan]

She graduated from Williams College in May 2017.  Upon graduation, she received a fellowship to study at Cambridge for two years, but decided to teach math (not as a full teacher, but as an assistant to a teacher) for under priviledged children in NYC for one year (Fall 2017 to Summer 2018).  In other words, she postponed the fellowship program for one year.  So, in 2018, she worked until June 2018 and then flew to UK in late September 2018.  The Cambridge program started in October 2018.  She is 23 now and will be 24 in September 2019.  In other words, she was 22 to 23 in 2018.

[NCperson]

I think you will have a challenge claiming your child this year as she must be under 24 AND a Full time student

Next year (2019) she will not be “under 24”

[Bun-chan]

Yes, I understand that.  But, getting back to my original question, is it correct that she is not considered a full-time student in 2018 because she was a student from October?  Thank you.

[NCperson · Accepted solution]

According to the definition in the link I provided “full time” is at least any 5 months of the year that she was in school

[Bun-chan]

Thank you for the clarification.