A researcher conducts an independent -measures research, Ask an Expert

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A researcher conducts an independent -measures research study and obtains t= 2.070 with df = 28.

a. How many individuals participated in the entire research study?

b. Using a two-tailed test with α = .05, is there a significant difference between the two treatment conditions?

c. Compute r2 to measure the percentage of variance accounted for by the treatment effect.

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