I have a 20 yo daughter who is a ful time student. Shealso works part time. Does she have topay fed.taxes?

I file jointly with my husband and we claim our children. My daughter is a full time college student. She works part time and I need to know if she is elligable to get a full tax return. She does not supoport herself but I dont feel it is fair for her to pay so much in taxes and not get it back.Since we claim her on our taxes she cannot take any deductions for money she spends on school.