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Exam 6: Research Strategies and Validity.

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Question 1

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Sensitization can threaten external validity because the results obtained in a study may be limited to ____.

A) ​the unique circumstances of the research study
B) ​individuals who have experienced a pretest
C) individuals who have experienced a series of conditions
D) ​participants who take on a variety of  subject roles

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Question 2

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Selection bias is a threat to external validity.​

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The purpose of the correlational research strategy is to describe the relationship between two variables and measure its strength.

A study examining the percentage of college-age students who are in committed relationships is an example of what research approach?​

The results of a study may be limited to the way the variable is measured.

Which research strategy is least concerned with examining relationships between variables?

Explain the difference between assignment bias and selection bias.Which one is a threat to internal validity and which is a threat to external validity?

A research design is a general approach that is intended to address a specific question.​

A research ____ is a general approach that is intended to address a specific question.

Experiments allow researchers to ____.​

A scatter plot showing the relationship between two variables shows data points that form a straight-line pattern.What kind of relationship is indicated by this pattern?

A researcher finds that in a laboratory a meditation session decreases anxiety scores of college students.The researcher wonders whether the meditation session would decrease anxiety in clients diagnosed with an anxiety disorder.This researcher is considering the ____ of the findings.​

What is an extraneous variable? How can it become a confounding variable? Describe a research study that contains an example of an extraneous variable.

What is a confounding variable? How does it affect the validity of your research study? Describe a research study that contains an example of a confounding variable.​

In research studies that compare different groups of individuals for each of the treatment conditions,____ is a threat to internal validity.

Describe the kind of question that each of the major five research strategies intends to answer.

Which research strategies attempt to address the same question about the relationship between variables?​

A research study finds that a group of participants who received relaxation training had lower exam anxiety scores than a group who did not receive training.However,the researcher suspects that the difference between groups may be caused by the fact that the participants in one group are generally smarter than those in the other.This study has a problem with ____.​

Any factor that allows for an alternative explanation for the results of a study is a threat to external validity.​

A research ____ is a general plan for implementing the research strategy.