An individual taxpayer (over 50 years old)made $7000 to her employer sponsed Roth 401(k).

Her husband made $7000 to his deductible traditional IRA.

  it correct that she can still contribute $7000 to her deductible traditional IRA, if their  income is below threshold or she can contribute partial to her deductible traditional IRA or partial to nondeductible traditional IRA if their income is over threshold but below phrase-out? 

thanks!