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Pages:
3 pages/≈825 words
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3 Sources
Level:
APA
Subject:
Psychology
Type:
Essay
Language:
English (U.S.)
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Topic:

Threats to Internal Validity. What are some specific examples of these confounding effects? (Essay Sample)

Instructions:

Some examples of threats to internal validity are:
- history
- testing
- regression to the mean
What are some specific examples of these confounding effects?

source..
Content:


Threats to Internal Validity
Student’s Name
Institutional Affiliation
Threats to Internal Validity
Internal validity deals with how well an experiment has been carried out, more specifically by avoiding the effects of more than one independent variable. For an experiment to have higher internal validity, it must have fewer chances for other independent variables affecting the experiment. Internal validity focuses on the degree to which the design of the study can be controlled. Internal validity is determined by exerting the degree of control over potential extraneous variables. It is necessary to control these potentially confounding variables since it helps to reduce the possibility for another explanation for treatment effects to emerge as an alternative and also provides much confidence that the independent variable affects the dependent variable. There are various ways in which internal validity can be threatened. There are eight threats to internal validity, however, this essay will focus on three of them which include history, testing and regression to the mean.
History acts as a threat to internal validity in cases where other events occur beyond the researcher's control and affect the study (Rubin & Babbie, 2009).

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