Question

text 1
in 2019, boston’s health department tested a system that tracked anonymized cough searches and fever readings from fitness bands. when those signals rose, nearby urgent - care visits tended to rise a few days later. because the data updated hourly, the city posted public dashboards. the project lead concludes that these digital traces can largely replace clinic - based influenza reporting, letting officials shift vaccine clinics sooner.

text 2
epidemiologist dana patel has noted a recurring paradox in predictive health modeling. when a new metric is validated by its correlation with an established measure, that correlation is often cited as grounds for retiring the original. but the validation logic runs in the other direction: the new metric borrows its credibility from the old. remove the reference standard, and you have no ongoing way to know whether the predictive relationship still holds— or ever did.

1. based on the texts, how would the author of text 2 most likely characterize the underlined claim in text 1?

a. as limited, since the newer approach may fail to represent certain populations as effectively as established methods.
b. as self - defeating, since the justification for the proposal depends on a relationship that the proposal itself would render unverifiable.
c. as inadequately demonstrated, since observed patterns in a limited context cannot reliably predict performance under different circumstances.
d. as circular, since confidence in the proposed replacement derives from comparison with the very system it is meant to augment.

Explanation:

To solve this, we analyze each option:

• Option A: Text 2 doesn't focus on representing certain populations, so A is incorrect.
• Option B: Text 2's paradox is about the new metric's validation. If the new digital traces (in Text 1) replace the clinic - based reporting (the original measure), then the correlation that justified the replacement (between digital traces and clinic - based visits) becomes unverifiable, as the original measure is removed. This matches the self - defeating idea (the proposal's justification depends on a relationship the proposal itself makes unverifiable).
• Option C: Text 2 isn't about patterns in different circumstances, so C is wrong.
• Option D: The proposal in Text 1 is to replace, not augment, so D's "augment" is incorrect.

Answer:

B. As self - defeating, since the justification for the proposal depends on a relationship that the proposal itself would render unverifiable.