If a researcher measured neuroticism in a group of participants and then divided the participants into high, moderate, and low neuroticism, this would be an example of
A) classification with an organismic variable.
B) very poor research design.
C) naturalistic research.
D) a causal inference.
Question 2
An independent variable is
A) directly manipulated by the researcher.
B) not directly manipulated by the participant.
C) indirectly manipulated by the researcher.
D) indirectly manipulated by the participant.
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The declining age of menarche over the past 150 years has been measured in many European countries,
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