%)What\'s thegreatest strength ofexperimental designs that:\"cr A) Experimental
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%)What's thegreatest strength ofexperimental designs that:"cr A) Experimental designs have the ability to show cause-and-effect relationships cleigsach B) Experimental designs have the ability to prove effects beyond a doubt C) Experimental designs have the ability to measure multiple variables D) Experimental designs have the ability to show relationships among variables E) Experimental designs allow intensive investigation of one individual person 57) For her senior research project Jerri collects survey data on the number of hours spent on social networking and grade point average (GPA). She creates a scatterplot to graph her results. If the pattern of dots on her scatterplot goes from lower left to upper right, what would this indicate? A) that the relationship is strong B) that it is a positive relationship C) that it is a negative relationship D) that people who spend a lot of time social networking tend to have a lower GPA 58. Reliability is defined by the text as: a. b. c. d. How well the study measures what it was designed to measure. How long a study is expected to remain relevant and influential. How close the study's results come to the experimenter's hypothesis. A measure of a study's consistency that considers how likely results are to be replicated if a study is reproduced. 59. John wants to study whether a larger number of laptops available to students at his school lead to higher grades. Choose the independent and dependent variable. a. Independent variable: Grades; Dependent variable: Number of laptops b. Independent variable: John; Dependent variable: Grades c. Independent variable: Grades; Dependent variable: John d. Independent variable: Number of laptops; Dependent variable: Grades 60. Kendra is researching the effects of vitamin C on test-taking ability. Before the exam, Kendra gives group A orange juice, and group B water. Group B is the a. Experimental group b. Dependent variable c. Control group d. Independent variableExplanation / Answer
56. Correct Answer - A
The biggest advantage of experimental design is that they show cause and effect relationship.
57. Correct Answer - B
It shows a positive relationship.
58. Correct Answer - D
Reliability is how consistent the results of the study are.
59. Correct Answer - D
Laptops is the IV and grades are the DV.
60. Correct Answer - C
It is the control group as the treatment is not administered to this group.
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