Intro to Quantitative Education Research Methods
Convener
Goals
- Understand when to use the most common statistical tests (t-test, ANOVA, Correlation)
- Understand the difference between significance level, power, effect size
- Understand how to minimize false positive results
- Practice aligning statistical tests to research questions
Program
1:30 Welcome
1:40 Survey participants for areas of research interest
1:45 Statistical testing
Important concepts (variability, significance level, power, effect size)
Common statistical tests (t-test, ANOVA, Correlation)
Integrating design and statistical testing
2:30 Small group practice
2:30-3:00 Comparing tests within a group
3:00-3:30 Comparing groups
3:30-3:45 Group discussion of observations and potential pitfalls in making inferences from statistical results
3:45 Discussion of possible statistical approaches to education research of interest to the group (e.g., how to test the effectiveness of a teaching idea)
4:00 Complete workshop survey
4:15 Adjourn
Resources
Statistical tests: http://statpages.org/#Comparisons
2 sample test: http://www.evanmiller.org/ab-testing/t-test.html
Correlation link 1: http://www.fon.hum.uva.nl/Service/CGI-Inline/HTML/Statistics/Correlation_coefficient.html
Correlation link 2: http://scistatcalc.blogspot.co.uk/2013/10/pearson-correlation-calculator.html
Chi-square: http://statpages.org/ctab2x2.html
Sample size: http://www.sample-size.net/sample-size-means/
some useful files:
scatter plots of correlation from zero to one (PowerPoint 2007 (.pptx) 596kB Jul8 15) chance of not getting .05 over multiple tries (Comma Separated Values 581bytes Jul8 15) Excel sheet to visualize correlations (Excel 2007 (.xlsx) 36kB Jul8 15) Some random numbers from 0-100 (Comma Separated Values 431bytes Jul11 15) |