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WEEK 13 · INDEPENDENT PRACTICE

Reproducibility and ethics worksheet

Four first-year problems and a shared 20-mark rubric.

4 × 5 = 20 marks30–45 minutesNo R prerequisite

Show your reasoning and explicitly state limitations. Written solutions are assessed by an instructor; the answer key is kept private.

Written problem set

TASK 1 · 5 MARKS

Question 1

List six components needed for reproducible analysis.

TASK 2 · 5 MARKS

Question 2

For 3 missing stress ratings in 36 rows, give valid n and missing percentage.

TASK 3 · 5 MARKS

Question 3

Why can runnable reproducible code still yield biased conclusions?

TASK 4 · 5 MARKS

Question 4

Describe safeguards to avoid public exposure of real student data.

Scoring

Each task: concept 2, application/calculation 2, bounded interpretation 1. Not official UCL marking.

Formative self-check

These are public learning checks, not private written assignment solutions.

1. What is not guaranteed by reproducibility?
2. Valid n for 3 missing values among 36?
3. Where should identifiable records be stored?
4. What does set.seed help with?