Selittäjämuuttujia
Selittäjämuuttujia, known in English as explanatory variables or independent variables, are fundamental concepts in statistics and research. They are the variables that are manipulated or observed in a study to see if they have an effect on another variable, known as the dependent variable. The goal is to determine if changes in the selittäjämuuttuja can explain or predict changes in the dependent variable.
In experimental research, selittäjämuuttujia are often the factors that the researcher directly controls or changes. For
In observational studies, selittäjämuuttujia are variables that are measured but not manipulated. Researchers observe relationships between
The identification and careful selection of appropriate selittäjämuuttujia are crucial for drawing valid conclusions from research.