Explain the concept and purpose of regression. Give an example of linear regression and an example of multiple regression.
What will be an ideal response?
• Regression is a statistical procedure which can be used to make predictions about an outcome (such as score on a criterion measure) based on a test score (or some other type of measurement).
• When the outcomes can be shown to be significantly related to the predictor (i.e., valid), these predictions can then be used for decision making purposes such as determining who should be admitted into an educational program or selected for a job.
• We use the statistical process called linear regression when we use one set of test scores (X) to predict one set of criterion scores.
• We use the statistical process of multiple regression when we have more than one set of test scores used for predicting a single criterion.
You might also like to view...
Of the following couples, which would you say would be the quickest to make a commitment and opt to cohabit the fastest?
a. Mark and John, a gay couple b. Linda and Elizabeth, a lesbian couple c. John and Tessa, a heterosexual couple d. Research has found that, despite popular belief, sexual orientation is unrelated to the speed at which couples "fall for" each other and choose to move in together.
According to the original IQ formula, a 40-yr-old with the same IQ score as the average 20-year-old would be considered mentally retarded
Indicate whether the statement is true or false.
In ____________________motor skills, small-muscle activity is being used
a. fine b. cephalocaudal c. systematic d. gross
The fact that a large percentage of physically abusive people were themselves abused by their parents can be best explained by
A) urban overload. B) catharsis. C) frustration-aggression theory. D) genetic predisposition. E) social learning theory.