====== Item Statistics and Results ======
Table: **ceStatsExamQuestion**

Aggregate of [[stats_candidate_item|Candidate Item 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 \\ \\ {{:stat_rawpercent_candidate.png|}}|
|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|{{:stat_valuepercent.png|}}|
|Difficulty|x = Count of Correct Items on Exam \\ n = Count of Candidates on Exam \\ \\ {{:stat_difficulty_candidate.png|}}|
|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 bottom27% of all Candidates taking the Exam. \\ n = Count of Candidates \\ \\ {{:stat_questiondiscrimination.png|}}|
|BiserialExam|Future|
|PointBiserialExam|See [[stats_concepts#biserial_calculations|Biserials]]|
|BiserialCorrectedExam|See [[stats_concepts#biserial_calculations|Biserials]]|
|
|PointBiserialCorrectedExam|See [[stats_concepts#biserial_calculations|Biserials]]|
|BiserialSection|Future|
|PointBiserialSection|See [[stats_concepts#biserial_calculations|Biserials]]|
|BiserialCorrectedSection|See [[stats_concepts#biserial_calculations|Biserials]]|
|PointBiserialCorrectedSection|See [stats_concepts#biserial_calculations|Biserials]]|
|BiserialCompetency|Future|
|PointBiserialCompetency|See [[stats_concepts#biserial_calculations|Biserials]]|
|BiserialCorrectedCompetency|See [[stats_concepts#biserial_calculations|Biserials]]|
|PointBiserialCorrectedCompetency|See [[stats_concepts#biserial_calculations|Biserials]]|
|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 [[start#CE Online Testing|Online Testing]]|
|Dichotomous|True if Item has one correct response worth 1 point and all other responses are incorrect worth 0 points.|
|IncludeInStats|See [[Stats_Concepts#Include in Stats|Include in Stats]]|
|PROXScore|Future use|
|PROXProportion|Future use|
|PROXLogit|Future use|
|PROXCalibration|Future use|
|PROXCalibrationFinal|Future use|
|PROXCalibrationError|Future use|