For one academic year all the students at a high school were observed. ███ ███ ███ ██ ████ ███ ██████████ ████ ████████ ████ █████████ █ █████████ ███████ ██ ███████ █ ██████ ██████ ██ ██████ ███ ████ ███ ████████ ███ █████ ███ ████ ████ ████████ ███ ███ ████ ██████ ██ ████ ██ ███ ████ ████████ ███ ███████ █████ ████████████ ███ ███████████ █████████ ████ ███ ███████ ██ ███ ███████████ █████████ ███ ███████ ███████████
Why did researchers conclude that studying increases a student’s chances of earning a higher grade when many students who did not study got better grades than the students who studied the most?
The correct answer must state a reason for researchers to conclude that studying increased a student’s chances of getting a higher grade. It must allow for some students who did not study to get better grades than those students who studied the most.
Which one of the following, ██ █████ ████ █████ ██ ███████ ███ ███ ███████████ ████ ███ ██████████ █████████ ██████
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The students tended ██ ███ ████████ █████ ██████ ██ ███ ████████ ████ ███████████
In each course, ███ ████ █ ███████ ████████ ███ ██████ ███ ██ ███ █████ ███ ██ ████ ███████
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Students who spent ████ ████ ████████ ██████████ ███ ██████ ████████ ██████ ████ █████ ████████ ████