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Item Statistics and Results
Table: ceStatsExamQuestion
Aggregate of Candidate Items Stats for each Item on the Exam.
Field | Description |
---|---|
StatsID | Unique Identifier for this set of Statistics |
QuestionID | ID of Item in the Bank |
Sequence | Sequence of Item on the Exam |
ValueMax | Maximum achievable points for Item |
QtyCorrect | Total of all QtyCorrect for Item for all Candidates |
QtySkipped | Total of all QtySkipped for Item for all Candidates |
QtyIncorrect | Total of all QtyIncorrect for Item for all Candidates |
RawPercent | x = Count of Correct Items on Exam n = Count of Candidates on Exam ![]() ![]() |
ValueCorrect | Total of all ValueCorrect for Item for all Candidates |
ValueSkipped | Total of all ValueSkipped for Item for all Candidates |
ValueIncorrect | Total of all ValueIncorrect for Item for all Candidates |
ValueTotal | (ValueCorrect + ValueSkipped + ValueIncorrect) |
ValuePercent | ![]() |
Difficulty | x = Count of Correct Items on Exam n = Count of Candidates on Exam x/n |
QuestionDiscrimination | A value between -1 and 1 Q1 is the Count of Candidates who responded correctly to Item whose Value total is in the top 27% of all Candidates taking the Exam. Q4 is the Count of Candidates who responded correctly to Item whose Value total is in the top 27% of all Candidates taking the Exam. n = Count of Candidates 1)/n |
Biserial | Currently Uncalculated.![]() |
Point Biserial | m1 = Mean of correct on Exam for all Candidates that answered correctly. m0 = Mean of correct on Exam for all Candidates that answered incorrectly. n1 = Count of all Candidates that answered correctly. n0 = Count of all Candidates that answered incorrectly. s = Standard deviation of Candidate correct on Exam n = Total number of Candidates on Exam 2)/3)* √4)/5)) |
ValueLow | Lowest ValueTotal achieved by a Candidate for this Item |
ValueHigh | Highest ValueTotal achieved by a Candidate for this Item |
ValueMean | Mean (average) ValueTotal achieved by a Candidate for this Item |
ValueStdev | Standard Deviation of ValueTotal for all Candidates for this Item |
ValueVariance | Variance of ValueTotal for all Candidates for this Item |
ValueMedian | Median (middle) ValueTotal for all Candidates for this Item |
ValueMode | Mode (most frequent) ValueTotal for all Candidates for this Item |
QtyCorrectTop50 | Count of Candidates who responded correctly to Item whose Value total was in top 50% of all Candidates taking Exam |
QtyCorrectBottom50 | Count of Candidates who responded incorrectly to Item whose Value total was in top 50% of all Candidates taking Exam |
TimeTotal | Total Time for all Candidates on this Item. Used in Online testing ![]() |
Dichotomous | True if Item has one correct response worth 1 point and all other responses are incorrect worth 0 points. |
IncludeInStats | ![]() |
PROXScore | Future use |
PROXProportion | Future use |
PROXLogit | Future use |
PROXCalibration | Future use |
PROXCalibrationFinal | Future use |
PROXCalibrationError | Future use |