Can my son contribute to a Roth IRA based on his taxable scholarship income?

My son has over $7,000 in taxable scholarship income.  The income is being reported on line 1 on his 1040 (not reported on a W-2) on the dotted line next to line 1 with the notation SCH $7,000 (as per IRS pub 970 directions).  The million dollar question is, can my son contribute to a ROTH IRA based on these taxable scholarships?  His W-2 income from working is only about $700.

We have researched this topic and cannot come to a sure answer.  Some of the research issues are that the IRS seems to now like to provide updated guidance on graduate students with fellowships.  My son is not a grad student and does not have a fellowship.  He just received much more scholarship money then the cost of his qualified educational expenses.