Multiple Choice
Professor Smith studied the effect of giving either two, four, or eight pellets of reward to rats that ran a maze. He measured how fast they ran, and how many wrong turns they made. How many levels of the independent variable did he have?
A) one
B) two
C) three
D) can't tell
Correct Answer:
Verified
Correct Answer:
Verified
Q49: A subject variable is aan)<br>A) incidental aspect
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Q52: For each variable listed above, decide whether
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Q54: To make sure that unintended variables do
Q55: The idea that a test appears to
Q56: A test is valid if it<br>A) measures
Q57: Which one of the following independent variables
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