I am 67years old. Using the standard deduction, may I also check the box claiming myself as a dependent, allowing my standard deduction to be 15,500.00, rather than 13,850.00?

[VolvoGirl]

Where are you getting or see 15,500?  You do not claim yourself as a dependent.  You either claim yourself as independent by just filing a return.  Or if someone else can claim you as a dependent (like on your kid's return) you have to check the box on your return that says you can be claimed on someone else's return.

[xmasbaby0]

Your standard deduction lowers your taxable income.  It is not a refund. 

2019 Standard Deduction Amounts

Single $12,200   (+ $1650 65 or older)

Married Filing Separate  $12,200   (+ $1300 if 65 or older)

Married Filing Jointly $24,400   (+ $1300 for each spouse 65 or older)

Head of Household $18,350  (+ $1650 for 65 or older)

Look on line 9 of your 2019 Form 1040 to see your itemized/standard deduction amount

[VolvoGirl]

I see where you are getting the 15,500.  You are adding another 1,650 to your Standard Deduction of 13,850 (12,200+1,650).  You only get another 1,650 if you are Blind.  Nothing to do with dependents.  In fact if you are someone's dependent you would get a lower Standard Deduction.