Data Codebook

Data Variable Names for Memory for Presidents Experiment – Summary Data

• recallNC — Number of Presidents correctly recalled
• recogNC — Number of Presidents correctly recognized
• recallErr — Number of non-Presidents falsely recalled
• recogErr — Number of non-Presidents falsely recognized
• recallHit — Hit rate (percent of Presidents recalled out of 45 Presidents)
• recogHit — Hit rate (percent of Presidents recognized out of 45 Presidents)
• recallFA — False alarm rate (percent Non-Presidents out of total names recalled)
• recogFA — False alarm rate (percent Non-Presidents out of total names recognized)
• recallPC0 — Overall percent correct for Recall trials (same as recallHit)
• recallPC1 — Recall percent correct for Presidents 1-7
• recallPC2 — Recall percent correct for Presidents 8-14
• recallPC3 — Recall percent correct for Presidents 15-21
• recallPC4 — Recall percent correct for Presidents 22-28
• recallPC5 — Recall percent correct for Presidents 29-35
• recallPC6 — Recall percent correct for Presidents 36-45
• recogPC0 — Overall percent correct for Recognition trials (same as recogHit)
• recogPC1 — Recognition percent correct for Presidents 1-7
• recogPC2 — Recognition percent correct for Presidents 8-14
• recogPC3 — Recognition percent correct for Presidents 15-21
• recogPC4 — Recognition percent correct for Presidents 22-28
• recogPC5 — Recognition percent correct for Presidents 29-35
• recogPC6 — Recognition percent correct for Presidents 36-45
• Sex — Sex of participant (F=Female, M=Male, N=Non-binary, O=Other)
• USA — Did participant attend high school in the USA?
• Cheat — Did participant cheat by using resources other than memory?
• FirstAware — First President that participant was aware of in own lifetime
• Section — Course Section (1 to 9, with 0=Not in PSY 100)
• GroupCode — Semester and section (for extracting subset of data)
• SessionDateTime — Date and time that experiment session concluded

Additional Variable Names for Secondary Data File (by Individual President)

• A01 through A45 — Recall Table (1 or 0 for each President—see note below)
• B01 through B45 — Recognition Table (1 or 0 for each President—see note below)
• recallErrList — List of non-Presidents falsely recalled
• recogErrList — List of non-Presidents falsely recognized

NOTE: Grover Cleveland is considered the 22nd President and the 24th President.
As of 2022 there have been 46 U.S. Presidents, but only 45 different individuals have served as President.
For purposes of this experiment, there are 45 names of U.S. Presidents, numbered as follows:

01. George Washington	02. John Adams	03. Thomas Jefferson	04. James Madison	05. James Monroe
06. John Adams	07. Andrew Jackson	08. Martin VanBuren	09. William Harrison	10. John Tyler
11. James Polk	12. Zachary Taylor	13. Millard Fillmore	14. Franklin Pierce	15. James Buchanan
16. Abraham Lincoln	17. Andrew Johnson	18. Ulysses Grant	19. Rutherford Hayes	20. James Garfield
21. Chester Arthur	22. Grover Cleveland	23. Benjamin Harrison	24. William McKinley	25. Theodore Roosevelt
26. William Taft	27. Woodrow Wilson	28. Warren Harding	29. Calvin Coolidge	30. Herbert Hoover
31. Franklin Roosevelt	32. Harry Truman	33. Dwight Eisenhower	34. John Kennedy	35. Lyndon Johnson
36. Richard Nixon	37. Gerald Ford	38. James Carter	39. Ronald Reagan	40. George Bush
41. William Clinton	42. George Bush	43. Barack Obama	44. Donald Trump	45. Joseph Biden