You are recruiting part-time tutors for an elementary school. according to research findings of the insufficient justification effect, a successful strategy to increase the commitment of these tutors would be to pay them salary.

good

Explanation:

A good salary always works as great motivating factor for increased commitment from tutors. For part-time tutors, the sense of job insecurity run high in their minds. For a better performance form part-time tutors, the only prospect is as much as earning as they could manage. Also, there is no reason why they should not be paid a good salary, if there are given permanent position.

small amount of money

Explanation:

this would be a useful strategy because it effectively keep the tutors at the elementary school.

because the early people found out about it.