Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

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
remaining cards
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:
restart all cards

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

Statistics Psy

confounding variable a variable (that we may or may not have measured) other than the predictor/independent variables in which we’re interested that potentially affects an outcome/dependent variable’. In other words, it’s a variable that is related to the outcome we are in
Systematic variation a variation in an experimental outcome that is due to the experimenters’ manipulation
Unsystematic variation the variation in outcome due to random (and often unknown) factors (e.g., change in the dependent variable brought about by something other than changes in the independent variable).
Unsystematic vs systematic variation The difference between these two types of variance is very important for statistical analysis because what we try to do with most statistical tests is to calculate the total amount of variance in our outcome variable and then figure out how much of it i
Created by: kaly