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Writing Section – Replacing the underlined part of the sentence:
Try defining the meaning of the underlined part of the sentence in your head before looking at the answers—the correct answer CANNOT change the meaning of the underlined part of the sentence.
In order to determine if a tutoring service was successful in improving test scores, a research study was conducted. From a large population of people with low test scores, 698 participants were selected. Half of the participants were randomly assigned to receive the tutoring service and the other half did not. The resulting data showed that participants who recieved the tutoring had significantly improved test scores compared to those who did not. Based on the design and results of the study, which of the following is an appropriate conclusion?
