Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Rehab Research

Chapter 8- Research Validity

QuestionAnswer
How is the validity of a piece of research defined? The extent to which the conclusions of that research are believable and useful.
What are the four types of validity? Internal validity, construct validity, external validity, and statistical conclusion validity
How is internal validity defined? the extent to which the results of a study demonstrate that a causal relationship exists between the IV and DV.
What is considered the best way to control threats to internal validity? the classical randomized controlled trial, with random assignments to experimental and control groups
What general strategy do researchers use to increase internal validity? maximize their control over all aspects of the research project
What are some of the threats to internal validity? History, maturation, testing, instrumentation, statistical regression to the mean, assignment (subject selected), subject attrition, interactions between assignment and maturation, history, or instrumentation, diffusion or imitation of treatments
With what is construct validity concerned? the meaning of variables within a study
What are some of the threats to construct validity? construct underrepresentation, experimenter expectancies, interaction between different treatments, interaction between testing and treatment
With what is external validity concerned? to whom, in what settings, and at what times the results of research can be generalized
What are some of the threats to external validity? selection, setting, time
How is external validity increased in single-subject research? through replication
What are 'cumulative relationships' in regards to the relationships among types of validity? a change that influences one of the threats influences other threats in the same way
What are 'reciprocal threats' in regards to the relationships among types of validity? when controlling a threat to one type of validity leads to realization of a different threat to validity
Created by: amwilliamson