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Correlation Design

UED 691

What is correlation research? Used to describe and measure the relationship between to more variable or sets of scores
What does co-vary mean? We can predict a score of one variable
Why use correlation research? To find out if two or more variables influence each other
What is explanatory design? Examines where changes in one variable reflect changes in another
What is a predictor variable? Used to make a forecast about an outcome
What is a criterion variable? Outcome being predicted
Positive correlation X and Y increase
Negative Correlation X increase and y decreases
Linear Positive Low scores of X correlate w/low scores of Y
Linear Negative Low scores of X associated with high scores of Y (negative relationship)
Uncorrelated X and Y are independent
Curvilinear Increase, plateau and decline
Degree of Association Reflects whether there is a consistent, predictable association between scores
.20-.35 Slight relationship
.35-.65 Useful for limited prediction
.65-.85 Good predictions
.85-above Predictions can be considered valid
Created by: 1093280684