A research report concludes that there are significant differences among treatme

Question

A research report concludes that there are significant differences among treatments, with “F(2, 24) = 8.62, p < .01.” If the same number of participants was used in all of the treatment conditions, then how many individuals were in each treatment?

7

9

10

30

A researcher reports an F-ratio with df = 1, 24 for an independent-measures experiment. If all the treatments had the same number of participants, then how many individuals were in each treatment?

11

12

13

14

7

9

10

30

A researcher reports an F-ratio with df = 1, 24 for an independent-measures experiment. If all the treatments had the same number of participants, then how many individuals were in each treatment?

11

12

13

14

Explanation / Answer

Number of treatments=2+1=3

Total number of individuals=2+24+1=27

Number of individuals in each treatment=9

(9-1)+(9-1)+(9-1)

=24

Similarly, Number of treatments=1+1=2

Number of individuals in each treatment=13

(13-1)+(13-1)

=24

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