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A researcher provides one group of participants a therapy intervention and another group of participants a no treatment control condition and then tests for a
A researcher provides one group of participants a therapy intervention and another group of participants a no treatment control condition and then tests for a significant difference between the two groups means on a dependent measure of psychological adjustment after treatment. Which one of the statistics below would she use?
z-test, one samplet-test, independentt-test, or dependentt-test?
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