题目
题目

ETX 010 001 SQ 2025 Learning Assignment 2

多项选择题

You design an experimental rat study to test whether a water toxicant increases the chances of cancer development. You have three groups of rats: control (water only), low toxicant concentration, high toxicant concentration. You expose the rats for two years before measuring molecules in their organs. Given this information, which of Hill’s Causal Considerations does this experiment address? You can choose more than one.

选项
A.Biological Gradient
B.Consistency
C.Temporality
D.Plausibility
E.Experiment
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标准答案
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思路分析
To unpack which of Hill’s causal considerations this rat study addresses, I’ll evaluate each option in turn and relate it to the study design described. Biological Gradient: The experiment uses three groups with different exposure levels (control, low toxicant concentration, high toxicant concentration). This setup allows assessment of whether increasing dose is associated with greater effect, i.e., a dose–response relationship. If a gradient in molec......Login to view full explanation

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