136. Programming tools: Adventures with R
137. The Statistics of Causal Inference: The View from Political Methodology 
138. Advanced data analysis for the social sciences
139. Always use Welch’s t-test instead of Student’s t-test
140. What’s misleading about the phrase, “Statistical significance is not the same as practical significance”
141. Reproducibility and Transparency
142. A Decade of Replications: Lessons from the Quarterly Journal of Political Science
143. Package to read the Stata 13 file format into a R data.frame
144. Valgdata skal være åbne
145. Six quick tips to improve your regression modeling