Save
or

or

taken

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.

focusNode
Didn't know it?
click below

Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
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

# Multiple Regression

Predicting a DV with 2 or more variables Major Benefits you can have as many IV's predicting your DV as you want. Helps predict DV with great accuracy. You can see if 2 or more IV are redundant in predicting DV. Allow you to predict your DV with great accurracy and with fewest numbers of IV's
Strength of Regression How can you tell if you have a "strong" predictor? Calculate R'2; shows how variance is explained by each predictor. Calculation: R*R=R'2 Interpretation if SAT scores R=.5(R'2= .25) SAT scores explain 25% of college success (.5*.5=.25)
Multicollinearity When the variance that is explained in the DV is overlapped by 2 or more predictors. The IV that wins ends up being a significant predictor. It explains variance that the other IV cannot
Hierarchical Regression Running IV one at a time or in set. BENEFITS: Allows for testing more complex theories. Allows for even better exploratory analysis Let us test complex hypothesis
Testing Mediation Run the IV (number of siblings) as a single predictor of the DV (college GPA)
Exploratory Analyses Stepwise regression SPSS decides how to enter or take away IV's in hierarchical analyses
Forward Stepwise Regression SPSS tests all IV individually and determines which one has the largest R'2 SPSS stops when it no longer finds significant IV
Backward stepwise regression SPSS tests all IV in multiple regression SPSS then repeats the multiple regression analysis wirh the remaining IV SPSS stops when all remaining IV are significant
Forward Stepwise Benefits SPSS gives you a model where only the most powerful IV are selected (survival of the fittest). Good for finding out which IV really matter.
Backward stepwise Regression Gives you a model where there is the greatest number of possible predictors. SPSS Gives you the most predictive model possible.
Regression Is often measured in exploratory studies. Measures your DV along with anything you think may be related to your DV. Example childhood obesity possible predictors diet exercise.
Dangers of step wise regression Should only be used for exploratory analyses. Stepwise regression is guided by statistics not theory so chance of type one error is high. they are not normally PUBLISHABLE Results
Multiple regression Let us predict one DV with multole IV
Created by: csosa1610
Popular Psychology sets

Voices

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:

• SPACEBAR - flip the current card
• LEFT ARROW - move card to the Don't know pile
• RIGHT ARROW - move card to Know pile
• BACKSPACE - undo the previous action

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: Retries:
restart all cards