What is the standard deduction for 2018 full time dependent student

[LinaJ2018]

It depends on your filing status.  Please see the information below.  If you are asking for him filing his own return, his standard deduction will be $12,000 by filing Single. 

https://ttlc.intuit.com/replies/4208574

[VolvoGirl]

Being a student doesn't matter.  If he is a dependent on someone else's return,
The Standard Deduction for an individual for whom an exemption can be claimed on another person's tax return is limited to the greater of:
…..$1,050 or
…..Your earned income for the year + $350

So you would get a minimum of $1,050 up to the max of 12,000.

[Hal_Al]

Being a student is irrelevant. Being a dependent is relevant. A dependent’s standard deduction is $1050 or his earned income** plus $350, whichever is more; but not more than $12,000.

**For purposes of calculating the standard deduction, taxable scholarships are considered income, but not for IRA contributions or the Earned Income credit