Word Doc Week 10

Question 1

Regression

Answer 1

• Provides us with statistical fframework for testing a range of models
  
  • Linear regression modelling
  • Least squares linear regression modelling
  • Regression modelling
  • Ordinary least squares regression

Question 2

Regression Jargon

Answer 2

• Prediction
• Predictor

Describes predition but does not relate to predicting the future

Question 3

Simple Univariate Regression

Answer 3

• Simple = One predictor; AKA: X
• Univariate = One dependent Variable; Also called Y, criterion variable, outcome variable

Question 4

Regression Equation

Answer 4

• Explains the relationship between two variables
• Mathematical expression of the Line of Best Fit
• Graphed and calculated so as to minimise the error of prediction
  
  • Y = predicted values of the outcome (first year uni psych)
  • ß = the slope of the line
  • X = scores on the predictor (VCE Psych)
  • C = the intercept

Question 5

Minimise the Error of Prediction