What Are Some of the Threats to Internal Validity That

question 121

Essay

What are some of the threats to internal validity that exist in this study? (see Chapter 8 in your textbook).

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Definitions:

.1 Level

Often referred to as the alpha level, it is a threshold used in hypothesis testing to determine if the observed data are statistically significant.

Visually

Pertaining to or relating to the ability to see or the process of vision.

Causal Relationships

denote a connection between two events where one is understood to be a direct result of the other, indicating a cause-and-effect relationship.

Experiments

The implementation of scientific procedures undertaken to discover something unknown or test a hypothesis, involving a manipulation of variables to determine cause and effect.