Busy. Please wait.
Log in using Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password


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.
Your email address is only used to allow you to reset your password. See 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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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 21: Statistical Aalysis of Differences: The Basics

What are the three most common distributions used for statistical tests? t, F, and chi-squared distributions
What are parametric tests? based on specific assumptions about the distribution of populations; use sample statistics such as the mean, standard deviation, and variance to estimate differences between population parameters
What are nonparametric tests? use rank or frequency information to draw conclusions about differences between populations (parametric are often more powerful and preferred)
What are the assumptions of parametric testing? 1 participants are randomly selected from normally distributed populations, 2 populations variances of the groups being tested are equal, 3 measurement level of the data as interval or ratio
When are data sets independent? when values in one set tell nothing about values in another set
When are data sets dependent? when the sets of numbers consist of repeated measures on the same individuals
What are the steps in the statistical testing of differences? the ten steps, page 280-281
Created by: amwilliamson



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

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