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--- research_methods:cross_sectional_studies [2017/12/18 15:38]
m7661780 created
+++ research_methods:cross_sectional_studies [2018/02/02 11:20]
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 ====== Cross sectional studies  ======
 {{vimeo>136584706?large|Cross sectional studies}}
-{{tag> }}
+==== PowerPoint ====
+  * {{:research_methods: Microlecture 4 5 Cross sectional studies 20150812.pptx| Cross sectional studies}}
+{{tag>unit_of_analysis variable_attribute variable_value causality spurious_relationship time_order reverse_causation dependent_variable endogenous_concept independent_variable exogenous_concept cross-sectional_research external_invalidity internal_invalidity reverse_causation}}
 {{tag>research_methods:ut research_methods:video}}
 /* Number 4 5 */