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Researchers want to conduct an independent t-test to compare subjects for whom English is a primary...

Researchers want to conduct an independent t-test to compare subjects for whom English is a primary language and non-native English speakers. In order to do so the outcome or dependent variable needs to be what level:

Interval or ratio

Nominal or ordinal

Interval or ordinal

Nominal or ratio
math   Statistics-And-Probability   
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Answer #1

as we know that to run an independent t-test , the dependent variable must be quantitative , therefore correct option is :

Interval or ratio

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