Changes in version 0.1.0 (2026-05-15)                  

  - Initial CRAN release.
  - Implements classical test theory item analysis for multiple-choice
    tests, including item difficulty (p-value), item discrimination
    (point-biserial and upper-lower 27 percent index), distractor
    analysis (per-option frequency, proportion, and point-biserial), and
    Haladyna's distractor efficiency.
  - Wrapper function mcq_analysis() returns an S3 object with print,
    plot (difficulty-discrimination scatter), and apa_table methods.
  - Includes a simulated example dataset mcq_example of 200 students on
    a 30-item four-option test.
  - Verified by 78 unit tests using testthat.