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An idea from Four Weeks, Not Four Years

Four weeks, not four years

The one useful thing a bachelor's degree certifies, that a person can learn, focus, and be trained, can be shown directly in about a month instead of four years.

In plain words

Tell a person ahead of time which topics they'll be tested on, something real in the field they want. Give them a few weeks to learn it however they learn best. Then have them do it, for real, in front of someone who does that work, on the record. By the end you've watched the things an employer wants to know. Can this person take in something new? Can they stick with it when it's hard? Can they take feedback? Can they finish? You don't need four years to find out whether someone can learn. You need to watch them learn something.

Evidence and sources

  • Close to half of college students showed little improvement in reasoning and writing in their first two years. Richard Arum and Josipa Roksa, Academically Adrift (University of Chicago Press, 2011).
  • Across 85 years of hiring research, work sample tests were among the best predictors of job performance and years of education among the weakest. Frank Schmidt and John Hunter, Psychological Bulletin 124, no. 2 (1998).
  • A 2022 re-analysis lowered many of the numbers, but methods that look straight at the job still came out ahead. Paul Sackett and others, Journal of Applied Psychology 107, no. 11 (2022).

Questions this answers

  • Is college worth it?
  • What does a bachelor's degree actually prove?
  • How can I prove I can learn without a degree?
  • Is four weeks long enough to prove anything?

Where this falls short

Four weeks shows that a person can be trained. It does not make anyone a surgeon or an engineer. The specialized training a field needs still happens afterward.

In the book

In Four Weeks, Not Four Years: Chapters 2, 9, 10.

Read the full answers

Is college worth it?How should employers test job candidates instead of requiring a degree?What does a bachelor's degree actually prove?How can I prove my skills without a degree?What does "Four Weeks, Not Four Years" mean?Who is Trenton Rich?

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Cite this idea. Trenton Rich, "Four weeks, not four years," in Four Weeks, Not Four Years (2026), maxwellrich.com/idea-four-weeks-not-four-years.html. Free to quote, copy and reuse with credit under CC BY 4.0. The book itself is under normal copyright.