Question

question 5 (2 points)
listen
a graduate student wants to consider the relationship between green spaces/park spaces and rates of obesity in a certain neighborhood for his thesis project. what is a limitation to his study
select the best option.
this study will not be able to protect the privacy and confidentiality of the population being studied.
this study will be hard to conduct unless the student goes door - to - door to talk with neighbors.
this study cannot definitively conclude that living next to a park means people are healthier.
this study needs to have waivers signed by everyone in the neighborhood.

Explanation:

Correlation does not equal causation. Just because there is a relationship between green/park spaces and obesity rates does not mean one directly causes the other. There could be other confounding variables (e.g., socioeconomic status of the neighborhood, access to healthy food options, etc.). The first option about privacy/confidentiality is not necessarily a given limitation - proper research methods can protect this. The second option about door - to - door is a logistical challenge but not a fundamental limitation. The fourth option about waivers is a procedural aspect (and not all studies need every single person's waiver if using aggregate data, for example).

Answer:

This study cannot definitively conclude that living next to a park means people are healthier.