Prediktorvariabel

Prediktorvariabel, often translated as predictor variable, is a term used in statistics and research to denote a variable that is believed to influence or predict the outcome of another variable. It is also known as an independent variable, explanatory variable, or regressor. The predictor variable is the input or cause in a potential causal relationship, while the variable it influences is called the response variable, dependent variable, outcome variable, or criterion variable.

In regression analysis, the predictor variable is used to estimate or predict the value of the response variable. For example, in a study examining the relationship between hours of study and exam scores, the hours of study would be the predictor variable, and the exam score would be the response variable. Researchers hypothesize that an increase in study hours will lead to a higher exam score.

The concept of predictor variables is fundamental to understanding and modeling relationships between different phenomena. Identifying appropriate predictor variables is crucial for building accurate predictive models and drawing meaningful conclusions from data. The strength and significance of the relationship between a predictor variable and a response variable are typically assessed using statistical tests. The choice of predictor variables depends heavily on the research question and the theoretical framework guiding the study.