10. A psychologist compares athletes and non-athletes on a motor task that requi

Question

10. A psychologist compares athletes and non-athletes on a motor task that requires them to use a mouse to track a moving target on a computer screen using either their dominant hand or non-dominant hand. The computer beeps each time the mouse loses contact with the target, indicting an error in tracking. The researchers find that the hand used does not affect the tracking accuracy of non-athletes, but athletes using their dominant hand earn more beeps than athletes using their non-dominant hand. Which of the following statements is most accurate? a. There is a main effect of type of athlete. b. There is a main effect of type of hand. c. There is an interaction between athlete and hand. d. A dependent-samples t-test would be the appropriate test to conduct. e· There are two dependent variables f. Options c and e are correct

Explanation / Answer

Most suitable statement for this problem is c i.e. there is an interaction between athlete and hand. This most suitable statement because athele earn more beaps when use dominant hand. So there is difference in number of beaps between using dominant hand and non- dominant hand. The difference in response between the level of one factor is not the same at all levels of the other factors. When this occurres there is an interaction between the factors. So there is interaction between athelete and hand.

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