STATISTICAL METHODS FOR RESEARCH Notes on implementation Use this document to make notes on your ideas and plans for implementing the Statistical Methods for Research program. You may wish to think about: Ways in which you want to customize the programme (e.g. screens to delete, areas where you want to add your own institutional content) Links between the online content and the face-to-face sessions you will be running as part of a blended learning program (e.g. which screens/units you might set as preparatory study before a particular workshop) Features which instructors/trainers could incorporate into their face-to-face sessions (e.g. videos or activities which could form the basis of a group discussion). 1 | Page © Epigeum Ltd, 2014 STATISTICAL METHODS FOR RESEARCH Introduction – Statistics in the context of research Screen Notes Unit 1: Getting started You as a researcher Pre-program quiz What stage are you at currently? What will I be able to do with my research data by the end of this course? Outline of the program Defining ‘statistics’ Unit 2: Statistical investigation What is a statistical investigation? Stages 1 to 3 of a statistical investigation Stage 4: Statistical modelling 2 | Page © Epigeum Ltd, 2014 STATISTICAL METHODS FOR RESEARCH Thinking statistically – Describing data well Screen Notes Unit 1: Describing data well What is a statistical investigation? Summaries for categorical variables Summarizing quantitative variables Reflecting the structure in the data The standard deviation 3 | Page © Epigeum Ltd, 2014 STATISTICAL METHODS FOR RESEARCH Thinking statistically – Making good generalizations Screen Notes Unit 1: Sampling variability and the precision of a sample estimate What use is all this stuff about variability? Sampling – the big idea Sampling in practice Sampling distribution Unit 2: Using standard errors to build confidence intervals The Normal distribution and confidence intervals Calculating a confidence interval Using software 4 | Page © Epigeum Ltd, 2014 STATISTICAL METHODS FOR RESEARCH Which hypothesis test should I use? Screen Notes Unit 1: Testing the null hypothesis Accepting versus not rejecting the null hypothesis A decision-making rule for hypothesis testing: The p-value Decision-making: The 5% significance rule Unit 2: The practice of statistical hypothesis testing Recap Comparing two means A more general analysis: ANOVA Which test do I use? 5 | Page © Epigeum Ltd, 2014 STATISTICAL METHODS FOR RESEARCH Statistical modelling Screen Notes Unit 1: Statistical modelling What is a statistical model? The statistical modelling framework Linking a one-sample ttest to the null regression model Straight line regression Straight line regression stage 4: Generalize your results The quadratic regression model 6 | Page © Epigeum Ltd, 2014 STATISTICAL METHODS FOR RESEARCH Analysis of categorical data Screen Notes Unit 1: Analysis of categorical data Comparing one single group of categorical binary data with a hypothesized target Testing for association with categorical binary data: Comparing two groups Confidence interval for a true difference between two proportions Testing for association with categorical binary data: Comparing three or more groups Testing for a linear association between a categorical binary outcome and an ordered categorical explanatory variable Conclusion: Putting your skills into practice Screen Notes Unit 1: Model reports Introduction Complete a model report Unit 2: Conclusion Post-program quiz 7 | Page © Epigeum Ltd, 2014