Popup window

Print this page

Test Form Statistics Report (Annotated Report Sample)

TEST FORM STATISTICS REPORT (Annotated Report Sample)
Test FieldForm Number of Tests Taken Total Test Scaled Score Indices Multiple-Choice Section Open Response Section Pearson Corr. of MC & OR Section Scores
Mean SEM Decision Consistency Stratified Alpha G Coefficient
Fixed Random Length Keats' SEM Computed SEM KR20 I Fixed I Random
01 TestName01A2272537.40.930.920.90854.33.90.890.890.610.66
B 2212547.30.910.920.89854.33.80.870.890.630.63
  • Test Field. The test field code and name.
    • Form (A, B, C, etc.). For each test field, a letter code designates the different test forms—each comprising a different set of scorable multiple-choice items—that were administered during the reporting period. Test forms are considered to be identical if they contain identical sets of scorable multiple-choice items, regardless of the order of the items.
  • Number of Tests Taken. The number of tests taken during the reporting period, including those tests retaken by the same candidate.
  • Total Test Scaled Score Indices
    • Mean. The mean of the total test scaled scores achieved by the candidates taking the test form, reported for each test form taken by 10 or more candidates.
    • SEM. The standard error of measurement of the total test scaled scores (Brennan 2001), reported for each test form with at least 100 attempts.
    • Decision Consistency. The total test decision consistency index of the total test scaled score (Breyer and Lewis 1994), reported for each test form with at least 100 attempts.
    • Stratified Alpha (Fixed and Random). Stratified coefficient alpha (with items as a fixed facet and with items as a random facet), reported for each test form with at least 100 attempts.

    Multiple-Choice Section

    • Length. The number of scorable items in the multiple-choice section.
    • Keats' SEM (Keats 1957). The estimated standard error of measurement of the multiple-choice section (on the raw score metric), reported for each test form with at least 100 attempts.
    • Computed SEM. The computed standard error of measurement for the multiple-choice section (on the raw score metric), reported for each test form with at least 100 attempts
    • KR20. The Kuder-Richardson index of item homogeneity.
  • G Coefficient (I Fixed and I Random). The Generalizability coefficient (with I fixed and I random) (reported for each test form with at least 100 attempts).

    Pearson Corr. of MC and OR Section Scores. Pearson Correlation of Multiple-Choice and Open-Response Section Scores, reported for each test form with at least 100 attempts.