Chapter 13_External Validity.ppt

Chapter 13_External Validity.ppt - External Validity...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
External Validity
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
External validity Internal validity increase experimental control the price of experimental control should not be irrelevant results, nor should control preclude generalization Do the results from a specific experiment generalize? to other participants (populations) to other experimenters to other methods same conceptual variables, different operationalizations
Background image of page 2
Generalization ….true generalization is not possible Across participants unless there is a reason to believe that the results will not generalize, the assumption is that the relationship will hold across populations Across settings ….techniques, experimenters, operationalizations Ecological validity (mundane realism) - the methods, materials and setting of the study must approximate the real-life situation that is under investigation not to be confounded with external validity not necessary but… Improving ecological validity may increase external validity
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 6

Chapter 13_External Validity.ppt - External Validity...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online