The New Statistics Part 1: Rationale, Effect Sizes, and Confidence Intervals

Online Course
$40.00 – List Price
$40.00 – Member/Affiliate Price
CE Credits
Exam Items
The APA Publication Manual Sixth Edition, released in July 2009, includes expanded recommendations for statistical analysis and the reporting of research. Major themes include the formulation of research objectives, effect sizes, confidence intervals, and meta-analysis. This is the first of two units that explain why the new recommendations are so important, discuss the statistical techniques emphasized in the themes, and explain with examples how to follow the new recommendations. This unit focuses on the reasons for the new recommendations, and their potential benefits. It discusses evidence-based practice in statistics and the formulation of research objectives, and introduces effect sizes and confidence intervals.      

Part of the APA Online Academy Professional Development Presentation Campus.  

Learning Objectives
  • Explain at least two problems with statistical significance testing. 
  • Explain what is meant by ‘thinking in terms of estimation’, and the advantage of this. 
  • Explain with examples what is meant by an effect size. 
  • Describe a confidence interval, and explain one way to interpret it. 
  • Outline what the Publication Manual Sixth Edition recommends in relation to effect sizes, and confidence intervals.
Geoff Cumming, DPhil
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