Define Internal Validity in Research Design

question 33

Essay

Define internal validity in research design. Describe two threats to the internal validity of a research study. (Note: For each threat, be sure to label it, describe it, and be sure to indicate how it specifically is a threat to the internal validity of the design.)

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Definitions:

Biological Differences

Variations at the genetic, cellular, or physiological level between individuals or groups, often contributing to characteristics like gender, physical attributes, and susceptibility to certain diseases.

Gender

The learned attitudes and behaviors that characterize women and men.

Biological Characteristics

Physical and genetic traits of organisms that define their species, and individual variations within it.

Sociobiologists

Experts who study the biological basis of all forms of social behavior in both humans and animals.