Yes she has to enter the ROTH IRA contribution at least to see if she was qualified to make it. Was the 11,837 self employment income the gross amount she got or the net profit after expenses?
For an IRA contribution. If you only have self-employment income you can only contribute up to your net profit reduced by the deduction allowed for one-half of your self-employment taxes then only up to the max IRA limit.
See IRS publication 590 http://www.irs.gov/pub/irs-pdf/p590a.pdf
