Empirical evaluation. You have been hired to evaluate a randomized controlled tr
ID: 3210145 • Letter: E
Question
Empirical evaluation. You have been hired to evaluate a randomized controlled trial (RCT) of a literacy intervention in India. 200 schools were selected to participate in the study. 100 schools were randomly selected to be treated while the other 100 schools were control schools. All students in each school were administered a basic literacy test. At the baseline, 34% of the control school students and 32% of the treatment school students were "literate". At the endline, 42% of the control school students and 48% of the treatment school students were "literate".
(a) By how many percentage points did the intervention increase literacy?
(b) While your RCT was ongoing, the amount that the state government provided to each school increased. This affected all schools in the study equally. Does this affect the ability of your RCT to find the effect of the program? BRIEFLY explain.
Explanation / Answer
SOL)
a)
Literacy declined, and in fact illiteracy increased.
In the treatment group, illiteracy increased by 48% - 32% = 16%
Thus, literacy declined by 16%
b)
No, since the effect of the intervention did equal effect on all schools, it does not affect the results much.
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