Question

A teacher gives a third-grade class (n = 10 students) a vocabulary test at the beginning...

A teacher gives a third-grade class (n = 10 students) a vocabulary test at the beginning of the school year and at the end of the school year. What statistical test should be used to analyze data from this study?

a.

One sample t-test
b.

One sample z-test
c.

Independent measures t-test
d.

Repeated measures t-test
Math   Statistics-And-Probability   
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Answer #1

The dependent t-test can be used to test either a "change" or a "difference" in means between two related groups, but not both at the same time(here a vocabulary test at the beginning of the school year and at the end of the school year.). Whether you are measuring a "change" or "difference" between the means of the two related groups depends on your study design.

d.

Repeated measures t-test

is the correct option.

please rate my answer and comment for doubts.

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