The type of design the school administrator is using is known an non-equivalent control group design.
The school administrator said he wants to compare records of a school that has no lockers with that of a school that has lockers. Hence, the answer to this question is non equivalent control group.
A non equivalent control group is a treatment group and a control group which are measured and compared after getting data from both groups at the beginning and at the end of a research program.
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The impact on the attack on Fort Sumter was that it is said to have been the first battle of the Civil War or the start of the Civil war as the Confederate Canons shot Fort Sumter.
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Ferdinand Magellan was the first man and person to circle the globe.
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First one He hoped winning in the north would gain Europe support for the south