Correlation
Correlation 2
Effect Size
Regression
Random
100
The extent or degree to which two variables are related.
What is Correlation
100
A graphical depiction of correlation.
What is scatterplot.
100
The size or magnitude of the effect caused by an IV or the size of magnitude of a correlation.
What is Effect Size?
100
You can have a statistically significant result and a small effect size. (T or F)
What is True?
100
Graphical display of the relation between values on the predictor variable and predicted values on the criterion variable.
What is Regression Line?
200
As scores on one variable increase, scores on the second variable also increase.
What is Positive Correlation
200
As scores on one variable increase, socres on teh scound variable decrease.
What is negative correlation?
200
The prediction of one variable from knowledge of another variable.
What is regression?
200
Regression refers to the prediction of one variable from our knowledge of another variable. (T or F)
What is True?
200
The steepness of the regression line?
What is Slope?
300
A single number that represents the degree of relation (i.e., "co-relation") between two variables.
What is Correlation Coefficient?
300
Exists when an increase of one unit in one variable is always accompanied by the same proportional decrease in the other variable.
What is perfect negative correlation?
300
The variable that is being predicted.
What is criterion variable?
300
The range for a correlation coefficient is:
What is +1.00 and -1.00?
300
The point at which the regression line crosses the vertical (Y) axis.
What is Y Intercept?
400
The correlation coefficient researchers calculate when both variables are interval or ratio scale measurements. Symbolized by r.
What is Pearson Product-Moment Correlation Coefficient?
400
Two variables under consideration are not related.
What is zero correlation?
400
The variable that is being predicted from.
What is predictor variable?
400
As sample size gets larger, the critical value needed to achieve significance becomes
What is Smaller?
400
Even though two variables may be highly correlated, you should not assume that:
What is one variable causes the other?
500
Exists when an increase of one unit in one variable is always accompanied by the same proportional increase in the other variable.
What is Perfect Positive Correlation.
500
A research result that occured rarely by chance.
What is statistically significant?
500
The squared Perason product moment correlation coefficient (r squared). When multiplied by 100, the coefficient of determination indicates the percentage of variance accounted for.
What is Coefficient of Determination?
500
Calculate several predicted values,plot these values, connect the points, and then extend the line to the Yintercept. This procedure works, but carries with it the potential forcalculation errors and inaccurate points.
What is Constructing a Regression Line?
500
Just because a correlation is negative doesn't mean that we ________ any predictive power.
What is Lose?
M
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