Question

A school administrator decides to study the effect of the DEAR (Drop Everything and Read) program, where students are required to read for 30 minutes every day in their classroom. She randomly assigns half of the classes to participate in DEAR and the other half to do something else. Later, she compares reading test scores for the two groups. Her research is an example of a(n):

A. case study

B. natural experiment

C. laboratory experiment

D. observation

Answer

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