Dr.Stone is conducting a study in a large Canadian city to determine whether moderate prenatal malnutrition is a risk factor for developmental delays in children.What difficulty will Dr.Stone face,when evaluating the results of her research

A) Participants will likely be unable to answer questions about their food consumption.
B) It will be difficult to find a large enough sample size, because moderate malnutrition is rare.
C) Malnutrition will be confounded with other factors associated with poverty or substance abuse.
D) Developmental delays are notoriously difficult to define and measure.

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Brandi Parson · Accepted Answer

Final Answer : C, Explanation :  Malnutrition is often associated with poverty and substance abuse, which could confound the results of the study. It may be difficult to separate the effects of malnutrition from the effects of these other factors. Participants may also be hesitant to report their food consumption accurately or may not remember accurately, which could be a limitation of the study. The sample size may not necessarily be a difficulty as it is possible to recruit participants from multiple settings, and developmental delays can be measured and defined clearly with standardized tools.

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