Which of the following statements is not a hypothesis?
a. rats with damage to their cerebellum will display deficits in motor coordination, using the rotarod test.
b. college students with higher conscientiousness will achieve higher overall gpas than those with lower conscientiousness.
c. aggressive behaviors in female rats will be increased by testosterone administration, compared to a control group.
d. anxiety disorders are caused by a combination of genetic and environmental influences.

D). Anxiety disorders are caused by a combination of genetic and environmental influences.

Explanation:

Hypothesis is described as the tentative supposition that aims to explain an observation, phenomenon, or problem which could be further challenged or tested. It is also described as the assumption for the sake of argument.

In the given question, option D displays the proposition that would not be categorized as a hypothesis as it doesn't state a proposition to a problem but instead states its factual cause. Thus, option D is the answer.

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