Median reward

[Mark Zuckerberg]

me·di·an - re·ward
ˈmēdēən - rəˈwô[rd]
adjective

1. A reward obtained at the midpoint of an assignment or a particularly unpleasant task. This reward (which generally consists of [something sweet]) serves the following significant purposes:

a) [retrospective]: providing the individual with a feeling of satisfaction for the percentage of assignment completed and

b) providing the individual with extra motivation to complete the remaining portion of the assignment