Chapter 6.2 External and Internal Validity

Question 1

External validity

Answer 1

concerns the extent to which the results obtained in a research study hold true outside that specific study. can we generalize the results of a research study to people settings times measures other than those used in that study?

Question 2

Threat to external validity

Answer 2

is any characteristic of a study that limits the ability to generalize the results from a research study.

Question 3

three different kinds of generalization

Answer 3

1 from a sample to the general population
2 from one research study to another
3 from a research study to a real world situation

Question 4

Internal validity

Answer 4

concerned with factors in the research study that raise doubts or questions about the interpretation of the results. A research study is said to have internal validity if it allows one and only explanation of the results.

Question 5

Threat to internal validity

Answer 5

Any factor that allows and alternative explanation for the results is a threat to internal validity