Dr.Peters investigated the relationship between academic performance of middle school students and the length of recess in the school.The study revealed that the longer the periods of recess for students, the better were their performances.This study is indicative of a:
A) zero correlation.
B) positive correlation.
C) negative correlation.
D) cross-correlation.
Correct Answer:
Verified
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A)a qualitative method of
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A)are forms of cause-and-effect research.
B)do not
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