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  • About
  • Research
    • Dissertating
    • NGSS Innovation Configuration Map
    • Conference Presentations
    • Resources >
      • Interpreting Effect Size
      • Interpreting Correlations
  • Active Syllabi
    • Improving Classroom Communication and Workflow
    • Examples >
      • 8th Grade Science at Singapore American School by Wyatt Wilcox
  • Media
    • Social
    • Blog
    • /)(/ Favorites
  • Resources
    • For Teachers >
      • The Google Apps Educator
      • Next Generation Science Standards >
        • NGSS Modeling
        • NGSS Assessment - Investigation Skills - Meltdown Summative
      • TpT
      • Inquiry Based Learning
      • Continuing Education
    • For Students >
      • Tips for Academic Success
      • Learning with Dr. Wilcox
    • Other >
      • Some Thoughts Concerning Education
  • Contact
Of key concern in any research are 1.) is there an effect 2.) what is the effect and 3.) what is the extent of the effect?   A method for considering points one and three is to calculate the effect size using a calculation called Cohen's d.   In my own doctoral research, Cohen's d was used to calculate the effect size of changes in teacher's Pedagogical Content Knowledge resulting from the use of 3D-PAST during NGSS-aligned professional development activities.   

The interactive shown below was developed by Kristopher Magnusson and is an excellent visualization of the meaning of effect size.  
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