====== The effect of Third Variables ====== {{vimeo>132531681?large|The effect of Third Variables}} ==== PowerPoint ==== * {{:research_methods: Microlecture 3 2 The effect of Third Variables 20150812.pptx| The effect of Third Variables}} {{tag>causality causal_hypothesis bivariate explanation effect_of_a_third_variableconfounding confounding_variable specification interaction moderation moderator interaction_variable}} {{tag>research_methods:ut research_methods:video}} /* Number 3 2 */