Regression Analysis
What regression analysis means
Simple and multiple regression, assumptions, interpretation of coefficients and model fit.
Worked example
One question from this skill's own question bank, shown with its full working.
In simple linear regression, the coefficient of determination (R squared) measures:
- The proportion of variance in the dependent variable explained by the model
- The slope of the regression line
- The correlation between two independent variables
- The standard error of the estimate
Working: R squared indicates how much of the variability in Y is accounted for by the predictor(s); an R squared of 0.64 means 64% of variance is explained.
Curriculum and exam alignment
Curriculum notes are a general guide to where this work normally sits. Always check the syllabus your school or examination body is currently using.
Related skills
Other Multivariate Modelling skills in Advanced Quantitative Research Methods, at the same point in the course.
Other Advanced Quantitative Research Methods topics
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Practise regression analysis
8 questions with a worked answer after every attempt, and a SmartScore that tracks how close you are to mastery.