Describe potential problem with internal validity of study

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A researcher is interested in whether population demographics are related to the amount a COVID-l9 precaution compliance in a city. To investigate this, she identifies a group of target cities to study. Next, she accesses the census data from those cities to collect relevant demographic information (race, socioeconomic status, etc). To get a measure of COVID-19 precaution compliance, she visits businesses (stores, banks, etc) that have hand sanitizer stations at the entrance and records the amount of hand sanitizer that has been used. Which of her measures is a physical trace and which is an archival record? For the physical trace, describe whether it would be considered an accretion or erosion measure. Describe a potential problem with the internal validity of this study.

Reference no: EM133264206

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