The Correlational Research Strategy Flashcards
What is a correlational research strategy?
The measurement of two or more variables to describe the relationship between them
What is the defining characteristic of a correlational reasearch study?
The intent is to describe the relationship between variables
What is a scatter plot?
A graph that best displays correlational data, with the two variables being compared with the x-axis and y-axis
Researchers calculate a statistical measure - a numerical measure that describes the degree and dimension of the relationship. What is this called?
A correlation coefficient
In a positive relationship, what is the tendency to change?
The variables change in the same direction
In a negative relationship, what is the tendency to change?
The variables change in the opposite direction
What is a Pearson correlation?
A correlation used to evaluate linear relationships
A relationship that is consistently positive or negative is called what?
A monotonic relationship
What is a Spearman correlation?
A correlation used to measure and describe monotonic relationships
The most common technique for measuring the strength between two variables is to compute what?
The coefficient of determination
What does it mean if there is a statistical significance of a correlation?
The correlation in the sample is large enough to be applied to the general population, unlikely to be random
When a correlational study demonstrates a relationship between two variables, the FIRST variable used to predict the second variable is called what?
Predictor variable
When a correlational study demonstrates a relationship between two variables, the SECOND variable being explained by the first variable is called what?
Criterion variable
What type of research design helps establish reliability and validity of a measurement procedure?
Correlational design
A common technique for studying multivariate relationships is a statistical procedure called what?
Multiple regression
