In regression analysis, the outcome variable—also referred to as the criterion variable—is the variable that is being predicted by the model.

Outcome Variable or Criterion Variable

Multiple regression is a statistical technique that extends simple regression by measuring several predictor variables ($$X_1, X_2, X_3, \dots, X_i$$) and using them to predict a single outcome variable ($$Y$$). It can also be utilized to describe the complex relationship between the outcome variable and a set of predictors. The result of this analysis is an equation that expresses the outcome variable as an additive combination of all the measured predictor variables.

Multiple Regression

In a statistical regression analysis, what is the specific role of a predictor variable?

In statistical regression, the predictor variable is the variable that is used to make a prediction about another variable. It serves as the known input value from which the predicted outcome is derived.

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University of Michigan - Ann Arbor

- Predictor variable
- Linear model strategy
- Finding the prior 
- Finding the posterior distribution 
- Generating predictions and intervals from posterior of a fit model 

Linear Predictions

Statistical regression is a technique that allows researchers to predict the value of one variable given the value of another variable. While correlation coefficients describe the strength and direction of a relationship, regression utilizes that established relationship to make specific mathematical predictions.

Statistical Regression

McElreath, R. (2020). Statistical Rethinking: A Bayesian Course with Examples in R and STAN (2nd ed.). Chapman and Hall/CRC.

Statistical Rethinking: A Bayesian Course with Examples in R and STAN (2nd edition)

https://kpu.pressbooks.pub/psychmethods4e/

KPU Research Methods in Psychology - 4th American Edition

Predictor Variable

In psychological research, what is the primary function of statistical regression?

While a correlation coefficient describes the strength and direction of a relationship, researchers use statistical ____ to make specific mathematical predictions about the value of one variable given another.

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