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Quiz 12 :

Experimental Research: Weak and Strong Designs

Quiz 12 :

Experimental Research: Weak and Strong Designs

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When members of comparison groups are selected in order to equate the groups on one or more variables that are correlated with the dependent variable, this is called:
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A

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Explain how experiments produce evidence of causality.
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A researcher is interested in whether a new reading program for 5th graders will lead to better performance than a traditional program. She is also concerned that the program effects might vary or be confounded with prior reading achievement. Hence, she includes prior reading achievement in her study as a variable. The control technique she used in this study was:
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D

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Describe the different ways an independent variable can be manipulated.
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Explain the different ways of controlling the influence of potentially confounding variables.
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A strategy for overcoming sequencing effects is called:
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A technique used to statistically equate groups that differ on a pretest or some other variable or variables is called:
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In which of the following examples is the independent variable manipulated by the presence versus absence technique?
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Compare and contrast factorial and repeated-measures designs.
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In which of the following examples is the independent variable manipulated by the amount technique?
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When a researcher notices that participants success in one condition is influenced by their experiences in the previous condition, she potentially has a(n):
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A researcher is interested in the effects of a preschool program on later school performance. Because she is concerned that socio-economic status (SES) is a potential extraneous variable in her study, she picks children to study who are only from low SES homes. The control technique she used in this study was:
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Explain the concept of an interaction effect. Multiple Choice
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Explain why some experimental research designs are weak designs and others are strong designs.
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An experiment involves:
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Explain the importance of control in experimental research and how control is achieved.
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The procedure that maximizes the probability that the comparison groups will be equated on all extraneous variables is called:
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In which of the following examples is the independent variable manipulated using the type technique?
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Counterbalancing involves:
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Experimental control refers to:
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