4S Which of the choces best defined thd defnrtia of aedath Mediating variables a

Question

4S Which of the choces best defined thd defnrtia of aedath Mediating variables are psychological processes that do not mediate the effect of a situational variable on a particular response Mediating variables are psychological processes that mediate the effect of a situational variable on a particular response None of the above All of the above a. b. c. d. 49. A psychologist, studying pilot trainees, picks a select group of trainees who are hopefully representative ofall other trainees. The group of trainees being studied by this psychologist are collectively known to researchers as a a. isolation group b. population c. target group d. control group e. sample 50. A researcher, based on her review of relevant scientific studies, believes that there is a relationship between the frequency of a baby's crying and whether it was nursed at set intervals or on a demand schedule. If this belief were tested by experimentally manipulating feeding schedules, frequency of crying would be called the: a. latent factor. b. dependent variable. c. independent variable. d. control factor. 51. A researcher tests the hypothesis that students who study in the room where they take their tests will perform better on the tests than students who study in other rooms. She requires one group to study in the classroom where the exam is given and another group to study in the library. All students take the test in the classroom, and their test performance is compared. In this example, where students study is the: a. 3rd variable variable. b. dependent variable. c. manipulation. d. hypothesis. e. independent variable. 52. In an experiment on the effects of level of motivation on the performance of typists, the researcher randomly assigned one third of her subjects to each of three levels of motivation (and then induced different levels of motivation in the three groups). She measured the average words typed per minute by each group, and found that performance was highest under medium

Explanation / Answer

49. Option D is the Appropriate Answer

Explanation: The control group is comprising of participants who do not receive the experimental treatment. When conducting an experiment, these people are randomly selected to be in this group.

50. Option B is the right answer

Explanation: An independent variable is a variable that is manipulated to determine the value of a dependent variable while a dependent variable is what we measure in the experiment and what is affected during the experiment. The dependent variable responds to the independent variable. In this case Feeding Schedule is an independent variable while baby’s crying is dependent variable.

51. Option E is the Correct Option

Explanation: An independent variable is a variable that is manipulated to determine the value of a dependent variable. In this instant case, where students study is independent variable while their performance in the examination is the dependent variable.

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