Collecting data to determine whether, and to what degree, a relation exists between two or more quantifiable variables.
What is correlational research?
100
The formal name of the variable that will be predicted.
What is criterion variable?
100
Correlating several variables to see what turns up.
What is correlational treasure hunt (shot gun/ fishing approach)?
100
The description of a correlation coefficient of +0.2
(Hint: Include strength and direction)
What is a weak positive correlation?
100
The minimally accepted number for a sample size in prediction studies.
What is 30?
200
The type of correlational research other than relationship studies.
What is prediction studies?
200
The necessary sample size when variables have low validity and reliability.
What is larger?
200
Where the first difference in the research process occurs.
What is data collection?
200
The description of a correlation coefficient of -0.8.
(Hint: Include strength and direction)
What is a strong negative correlation?
200
A limitation when the researcher must collect data across a lengthy time period but loses participants.
What is attrition?
300
To determine whether a set of variables are related and if related variables are correlated enough to make predictions.
What is the purpose of correlational research?
300
The condition that must exist between variables that allow for predictions to be made.
What is highly correlated?
300
The time when the predictive variable is found in relation to the criterion variable.
What is before?
300
Data points plotted on a graph seem to have no pattern or relationship.
What is no correlation?
300
The tendency for a prediction to be less accurate for a group other than the one on which it was originally developed.
What is shrinkage?
400
The relationship that is not supported through correlational research.
What is causation?
400
The basis on which variables should be selected in correlational research.
What is rationale?
400
Correlating many variables to see what turns up.
What is correlational "treasure hunts," shotgun, and fishing approach?
400
This correlation coefficient is sometimes referred to as "rank difference correlation," because at least one variable is expressed as rank or ordinal data.
What is Spearman rho?
400
A variable that cannot be directly observed or controlled but can influence the relation between the predictor and criterion variables.
What is an intervening variable?
500
The correlation between ice cream sales and the temperature if as the temperature increases, ice cream sales also increase.
What is positive correlation?
500
The predictor variable in the scenario "Scores on a teacher certification exam are used to predict principals' evaluation of teachers' classroom performance".
What is the teacher certification exam?
500
Another name for a multiple prediction equation.
What is a multiple regression equation?
500
A measure of correlation that is appropriate when both variables to be correlated are expressed as continuous (e.g. ratio or interval) data.
What is Pearson r?
500
Validation of a prediction equation with at least one group other than the group on which it was developed.
Hint: Helps to eliminate shrinkage