What kind of research is best illustrated in the following statement? One group of teachers was trained to call on all their students as equally as possible, another group of comparable teachers received no training, and the results indicated that the trained teachers' students achieved significantly higher than the other teachers' students.
a. Descriptive research
b. Correlational research
c. Experimental research
d. Longitudinal research
Question 2
Luisa is an educational researcher. She surveys everyone in the district to obtain their opinions about after-school enrichment programs. What type of research is best illustrated by Luisa's efforts?
a. Descriptive research
b. Theoretical research
c. Experimental research
d. Correlational research
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Recent research suggests that zinc lozenges and nasal gels may help reduce the severity
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