Question at position 26 A review of existing studies is conducted to establish if a connection exists between professors posting recipes for their students and students' improved dietary habits. The review finds that 18 of the 20 different studies report an established recipe-better diet relationship. This is an example of…?Biological plausibilityConsistency of the relationshipStrength of associationDose-response relationship

Question

BlackTom AI · Accepted Answer

In this scenario, we are looking at whether multiple studies investigating the same exposure (professors posting recipes) and the same outcome (students' dietary habits) show a similar finding. 
Option 1: Biological plausibility refers to whether there is a credible mechanism by which the exposure could cause the outcome. While this is important for causal inference, the information given focuses on study repetition and consistency, not on a mechanistic explanation. 
Option 2: Consistency of the relationship is about whether different studies yield similar results. Here, 18 out of 20 studies found an established recipe–better diet relationship, which demonstrates a repeated overlap across studies and supports consistency. 
Option 3: Strength of association describes how strong the observed effect is (for example, the size of the association or risk ratio). The data provided mentions the number of studies with a finding but does not quantify how strong the effect is, so this option cannot be determined from the given information. 
Option 4: Dose–response relationship would imply that greater exposure leads to a greater effect, such as more recipes leading to increasingly better diets. The scenario does not discuss varying levels of exposure or a gradient of outcome, so this option is not fitting. 
Taken together, the pattern of results across many studies best aligns with the concept of consistency, since multiple independent studies report a similar association, rather than focusing on mechanism, effect size, or exposure gradation.

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