Difference-in-Differences Estimate

Problem

Return the difference-in-differences estimate (treated_post - treated_pre) - (control_post - control_pre) from the four group-period means.

Hint

Difference the changes, not the levels.

case 1

in: [10,14,5,7]

expected: 2

case 2

in: [10,10,5,5]

expected: 0

case 3

in: [10,8,5,8]

expected: -5

case 4

in: [0,1,1,0]

expected: 2

case 5

in: [100,105,90,92]

expected: 3

Starter codePython

def did_estimate(treated_pre, treated_post, control_pre, control_post):
    # Your code here
    pass

5 test cases · run your code against them in the editor