Slide 5 of 12

Different Methods
of Scoring

Number-Correct Scoring

  • Simple Mathematics

  • Raw scores (# of points)

    • Mean, SD, SEM, % correct

  • Number right scale

  • Score conversions

    • Scale scores, percentile ranks, etc.

Pattern Scoring

  • Complex Mathematics

  • Maximum likelihood estimates

    • Item statistics, student’s answer pattern, SEM

  • Theta scale (mean=0, standard dev=1)

  • Score conversions

    • Scale scores, percentile ranks, etc.