Harvard GOV 50: Data Science for the Social Sciences
Gov 50 is Harvard's data science course for the social sciences, covering visualization, data wrangling, causal inference, and statistical inference in R. It's one of the most popular quantitative courses in the college. Its course materials are published openly, giving it an audience of self-learners working through the public site.
Fennie is independent and not affiliated with Harvard University. This is an unofficial study guide.
What makes it hard
Two learning curves run simultaneously: R and the tidyverse for students who've never coded, and causal reasoning for everyone, including confounding, randomization, and why correlation keeps not being causation. The coding catches up with practice; the causal-inference concepts are what exams and the final project actually grade.
What you'll cover
- • R and the tidyverse
- • Data visualization
- • Data wrangling
- • Causal inference and experiments
- • Sampling and uncertainty
- • Regression
The GOV 50 study guide
How to study for Harvard GOV 50, step by step.
- 1
Type every line of code yourself
Copy-pasting from the course materials feels efficient and teaches nothing. Retype, run, break, and fix the examples, because R fluency in Gov 50 comes from fingers, not eyes.
- 2
Separate the coding problem from the stats problem
When stuck, diagnose which kind of stuck: syntax or concept. They have different fixes, and conflating them is why problem sets stall for hours.
- 3
Write the causal story before the code
For every analysis, state in words what's being compared and what could confound it. The causal-reasoning layer is what's graded; the R code is just how you express it.
- 4
Build toward the final project from mid-semester
Pick a dataset early and apply each week's tools to it as you learn them. The project rewards accumulation, and the students who start at the deadline produce visualizations without arguments.
Today
Today's GOV 50 plan
What a Fennie Daily Plan looks like for GOV 50. Yours is built from your own syllabus and adapts every day to your deadlines and progress.
First plan free, no card required. Fennie is independent and unaffiliated with your school.
FAQ
Is Gov 50 hard if I've never coded?
It's designed for beginners and many students arrive with zero programming. The R curve is steep for about a month; daily typing practice flattens it.
Does Gov 50 count toward the government concentration?
It's the department's data science foundation and feeds its quantitative methods pathway. It's also taken widely by non-concentrators for the skills.
Gov 50 or CS 109A?
Gov 50 teaches R and causal thinking for social science questions with no prerequisites; CS 109A is Python-based and assumes programming and statistics. Gov 50 is the gentler, social-science-flavored entry.
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