Controlled experiment 

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do school inspections improve primary school performance pdf
... state of dutch education. in doing so, the inspectorate performs what is essentially a controlled experiment in which the sample of schools that are inspected represents a random experimental group. ... sample of schools to be inspected, the dutch inspectorate of education is actually performing a controlled experiment. to be able to obtain estimates based on the ist inspections at randomly selected ...
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Microsoft Word - discussion33.doc
... ideally, assignment to the treatment group and the control group is random (a so-called controlled experiment; standard research method in for instance pharmaceutical studies where the effects of new ... to a controlled experiment is a natural experiment, in which the researcher uses creative solutions to construct a randomly selected treatment group. in our case, we can design a natural experiment by ...
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