Final answer:
Carrie should have considered logical fallacies, outdated data, and methodological errors as indicators of issues in her research study, beyond the noticed correlation involving data collector Barry.
Step-by-step explanation:
Apart from the data analysis showing a correlation with Barry being the data collector and lower responses, there are other signs that could have indicated issues with the study.
In the examples provided, insights into other possible red flags include the mention of Tran pointing out flaws in the old data, which suggests the need for a critical evaluation of data sources.
Additionally, there are multiple prompts about Lee suspecting an answer is headed down the wrong path, hinting at possible logical fallacies or methodological errors that could be present in the data or its analysis.
Carrie should have been on the lookout for outdated information, logical inconsistencies, and methodological problems that could compromise the integrity of the research findings.