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 9- Selection and Assignment of Participants

QuestionAnswer
How is a 'population' defined? the total group of interest
How is a 'sample' defined? a subgroup of the group of interest
What is 'sampling'? the procedure by which a sample of units or elements is selected from a population
Who is the 'target population'? the group to whom researchers hope to generalize their findings
Who is the 'accessible population'? the group of potential research participants who are actually available for a given study
What are the four types of characteristics that define populations? Which characteristics define the target population? The accessible population? clinical, demographic, geographic, and temporal; clinical and demographic define the target population, geographical and temporal define the accessible population
What are the four types of probability sampling? simple random sampling, systematic sampling, stratified sampling, and cluster sampling
What are the three types of nonprobability sampling? samples of convenience, snowball sampling, and purposive sampling
What is the goal of group assignment? to create groups that are equally representative of the entire sample; secondary goal is to develop groups of equal size
What are some of the methods used for assignment to groups? random assignment by individual, random assignment by block, systematic assignment, matched assignment, consecutive assignment
What is ensured by the best assignment method? group sizes are equal, group characteristics are similar, and group characteristics approximate the overall sample characteristics
What is the general principle of sample size? larger samples tend to be more representative of their parent populations than smaller samples
Created by: amwilliamson