Easy SQL date question

I am writing a select statement and I would like to show a 1 if a date is in the past and 0 if it is today or in the future.  I'll send up summing that field to come up with the number of records that have a date that is in the past.  This is what I have so far.

SELECT DateField, NameField
FROM MasterTable
WHERE NameField = @Variable
GROUP BY NameField

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