When comparing the body mass index (BMI) of obese women in two cities, it would be an erroneous assumption for the nurse to think that, based on these averages, since the average BMI of City A was higher than that of City B, a woman in City A will have a higher BMI than a woman in City B. This assumption is referred to as:
A)An odds ratio.
B)An ecological fallacy.
C)A causality.
D)A relative risk.

Question

Quizplus · Accepted Answer

An ecological fallacy occurs when assumptions about individuals are made based on aggregate data for a group, such as assuming individual characteristics from group averages.

When Comparing the Body Mass Index (BMI) of Obese Women