Changes in version 1.1.1                        

  - Strengthened input validation across functions. Added checks for
    finite values, parameter bounds, and boundary cases in effect-size
    conversion utilities and power analysis functions.
  - Clarified documentation for pwrcortest() and pwrttest() to state
    that signed effect-size inputs (rho, delta) are converted to their
    absolute values.

                        Changes in version 1.1.0                        

  - Added ncp_scale argument to pwrcortest() for alternative scaling of
    the noncentrality parameter in correlation power analysis.

                 Changes in version 1.0.3 (2026-01-19)                  

  - Fixed a bug in the denominator df for paired/repeated-measures
    contrast tests.

                 Changes in version 1.0.2 (2025-10-07)                  

  - Minor adjustments in DESCRIPTION and documentation links.
  - Small fixes in preparation for CRAN submission.

                        Changes in version 1.0.1                        

  - Removed obsolete comments in code.
  - Updated citation information.
  - Minor updates to DESCRIPTION.

                        Changes in version 1.0.0                        

  - First stable release of the package.

  - Provides power analysis functions for:
    
      - Between-, within-, and mixed-factor ANOVA designs (main effects
        and interactions).
      - Planned contrasts with user-defined weights.
      - t-tests (one-sample, paired, and two-sample).
      - Pearson correlations (using either the t-distribution or
        Fisher’s z-transformation).

  - Supports solving for:
    
      - Statistical power
      - Required total sample size
      - Significance level (alpha)
      - Minimal detectable effect size (Cohen’s f, partial eta squared,
        or Cohen’s d-type indices).

  - Validated against G*Power for supported ANOVA designs, t-tests, and
    correlation tests.