Define the concept of internal validity

Reference no: EM133327762

Assignment:

Answer the following questions:

1. Define research strategy, research design, and research procedures, and describe the choices and decisions involved during these three stages in the development of a research study.

2. Define the concept of external validity and a threat to external validity. Define the concept of internal validity and a threat to internal validity.

3. Describe how extraneous variables can become confounding variables and threaten the internal validity of a research study; identify threats when they appear in a research report.

4. Define experimenter bias, demand characteristics, and reactivity, and explain how these artifacts can threaten both internal and external validity.

Reference no: EM133327762

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