Search
Browse
Create
Log in
Sign up
Log in
Sign up
Correlation and Simple Linear Regression
STUDY
Flashcards
Learn
Write
Spell
Test
PLAY
Match
Gravity
Terms in this set (16)
Pearson's r
Measures the strength of a linear relationship.
Negative correlation
As one variable increases the other decreases.
Coefficient of determination
Measures percentage of variability in one variable that is predictable by knowledge of another variable
"Chance" or zero correlation
P > .05
Statistically significant correlation
P< .05
Ypredicted = b X + a
General case form of simple linear regression
Homoscedasticity of variances
Normal distribution of error around a regression line.
standard error of estimate
range around predicted score within which you are sure with a specified degree of certainty that the predicted score will indeed fall.
restriction of range
can make the value of a correlation seem lower than in fact in may be
outliers
can make the value of a correlation coefficient higher than it in fact may be
biased standard deviation
divisor is "n" rather than "n-1". must be used with Dr. Simpson's computational formulae for Pearson's r, linear regression, and standard error of estimate
Graphs>Legacy>Scatterplot
Menu Path on SPSS to get preliminary graph to allow an informed judgment about whether the relationship is linear
Analysis>Correlate>Bivariate
Menu path on SPSS to determine Pearson r values and whether or not they are statistically significant
Analysis>Regression>Linear
Menu path on SPSS to take if Pearson correlation is significant and you wish to develop a prediction formula
Multiple linear regression
more than one predictor
"Dependent" variable
In correlational procedures, the criterion---that which you are trying to predict. The last collected variable
YOU MIGHT ALSO LIKE...
Psychology | Sdorow, Rickabaugh, Betz
AcademicMediaPremium
$11.99
STUDY GUIDE
Pol.Research.Chps_11-13
79 Terms
kbs70
Methods Final Exam
83 Terms
Ned18
Ch. 11- Correlation Design
22 Terms
VSaunders8454
OTHER SETS BY THIS CREATOR
Facts about Carroll University
12 Terms
dsimpson
Top 100 Learning Tools Quiz
11 Terms
dsimpson
Second Quizlet Example by DS for PSY205
20 Terms
dsimpson
THIS SET IS OFTEN IN FOLDERS WITH...
Stats Lecture Correlation + Linear Regression
95 Terms
Alex_Kleinman9
Psychology Statistics
19 Terms
kfpugs829
Psychological Statistics
73 Terms
Medicmommy2
Statistics: Reading computer print-outs for Linear Regression
23 Terms
esosa233
;