Weekly Lecture - Analysing data

I. Three Questions

  • Population or Sample?
  • Level of Measurement?
  • How many variables?

II. Elementary data analysis

  • Frequency Distributions
  • Percentaging, recoding and graphing
  • Central Tendency and Dispersion
  • Bivariate tables, correlation and regression

III. The Elaboration Model

  • Zero and first order partials
  • Antecedent vs Intervening
  • Elimination vs Specification

IV. Testing Differences

  • Single Sample Tests - z tests and confidence intervals
  • Two Sample Tests - t tests
  • Multiple Sample Tests - ANOVA
  • Non-parametric alternatives

Powerpoint Summary