PrepTest 71, Section 2, Question 9
Records from 1850 to 1900 show that in a certain region, babies' birth weights each year varied with the success of the previous year's crops: the more successful the crops, the higher the birth weights. This indicates that the health of a newborn depends to a large extent on the amount of food available to the mother during her pregnancy.
Records from 1850 to 1900 show that in a certain region, babies' birth weights each year varied with the success of the previous year's crops: the more successful the crops, the higher the birth weights. This indicates that the health of a newborn depends to a large extent on the amount of food available to the mother during her pregnancy.
Records from 1850 to 1900 show that in a certain region, babies' birth weights each year varied with the success of the previous year's crops: the more successful the crops, the higher the birth weights. This indicates that the health of a newborn depends to a large extent on the amount of food available to the mother during her pregnancy.
Records from 1850 to 1900 show that in a certain region, babies' birth weights each year varied with the success of the previous year's crops: the more successful the crops, the higher the birth weights. This indicates that the health of a newborn depends to a large extent on the amount of food available to the mother during her pregnancy.
The argument proceeds by
inferring from a claimed correlation between two phenomena that two other phenomena are causally connected to one another
inferring from the claim that two phenomena have fluctuated together that one of those phenomena must be the sole cause of the other
inferring from records concerning a past correlation between two phenomena that that correlation still exists
inferring from records concerning two phenomena the existence of a common cause of the phenomena and then presenting a hypothesis about that common cause
inferring the existence of one causal connection from that of another and then providing an explanation for the existence of the two causal connections
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