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In response to office workers' worries about the health risks associated with using video display terminals (VDTs), researchers asked office workers to estimate both the amount of time they had spent using VDTs and how often they had suffered headaches over the previous year. █████████ ██ ███ ███████ ████████ ███ █████ ████████ ████ █████████ ████ █████ ████ █████ ██████ ███████ ████ ███████ ███████████ ██ ████████ ████ ████ █████ ██████████
Summarize Argument: Phenomenon-Hypothesis
The researchers hypothesize that video display terminals (VDTs) cause headaches. They base this hypothesis on survey data that showed that office workers who frequently used VDTs experienced headaches more often than other office workers.
Notable Assumptions
The researchers are assuming a causal relationship from the data that shows a correlation between frequent use of VDTs and frequent headaches. This means that they are assuming that the causal relationship is not reversed (in other words, that frequent headaches cause office workers to use VDTs more often). They are also assuming that some outside factor is not causing both the headaches and the frequent VDT use. Additionally, the researchers are assuming that the data from the survey of office workers are accurately reported and representative data.
14.
Which one of the following, ██ █████ ████ ██████████ ███ ████████████ ███████████
a
Few of the ██████ ███████ ████████ ████████████ ██ ███████ ██████ ████████ ██████ ███ ████ ██ █████████
b
In their study ███ ███████████ ██████ ██ ███ ███ ███████ ██ ███████████ ███████ ██████ ████████ █████████ ███ ████ ██████████
c
Previous studies have █████ ████ ███ █████ ████ ███ ███████ ██████ ████ █████ ██ ██████ ██████████
d
Office workers who ███████████ ████████ █████████ ████ ████ ██████ ████ █████ ███████ ██ ████████████ ███ ████ ████ ████ █████ █████ █████
e
Office workers who █████████ ████ ████ ███████████ ███ ████ ██████ ██ ███████████ ██████ ██ ███████ ███ ███ ███ ███ █████