Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
|
stats_item [2017/02/10 13:24] steveclarke |
stats_item [2018/04/10 11:17] (current) 72.38.112.148 |
||
|---|---|---|---|
| Line 2: | Line 2: | ||
| Table: **ceStatsExamQuestion** | Table: **ceStatsExamQuestion** | ||
| - | Aggregate of [[stats_candidateI_item|Candidate Items Stats]] for each Item on the Exam. | + | Aggregate of [[stats_candidate_item|Candidate Item Stats]] for each Item on the Exam. |
| ^Field^Description^ | ^Field^Description^ | ||
| Line 12: | Line 12: | ||
| |QtySkipped|Total of all QtySkipped 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| | |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.png|}}FIXME graphic| | + | |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| | |ValueCorrect|Total of all ValueCorrect for Item for all Candidates| | ||
| |ValueSkipped|Total of all ValueSkipped 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| | |ValueIncorrect|Total of all ValueIncorrect for Item for all Candidates| | ||
| |ValueTotal|(ValueCorrect + ValueSkipped + ValueIncorrect)| | |ValueTotal|(ValueCorrect + ValueSkipped + ValueIncorrect)| | ||
| - | |ValuePercent|{{:stat_valuepercent.png|}}FIXME graphic| | + | |ValuePercent|{{:stat_valuepercent.png|}}| |
| - | |Difficulty|x = Count of Correct Items on Exam \\ n = Count of Candidates on Exam \\ \\ {{:stat_difficulty.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|}}| | |
| - | Difficulty (p) x = Count of Correct Items on Exam | + | |BiserialExam|Future| |
| - | n = Count of Candidates on Exam | + | |PointBiserialExam|See [[stats_concepts#biserial_calculations|Biserials]]| |
| - | x/n | + | |BiserialCorrectedExam|See [[stats_concepts#biserial_calculations|Biserials]]| |
| - | QuestionDiscrimination 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. | + | |PointBiserialCorrectedExam|See [[stats_concepts#biserial_calculations|Biserials]]| |
| - | A value between -1 and 1 | + | |BiserialSection|Future| |
| - | n = Count of Candidates | + | |PointBiserialSection|See [[stats_concepts#biserial_calculations|Biserials]]| |
| - | ((Q1-Q4))/n | + | |BiserialCorrectedSection|See [[stats_concepts#biserial_calculations|Biserials]]| |
| - | Biserial Currently Uncalculated. | + | |PointBiserialCorrectedSection|See [stats_concepts#biserial_calculations|Biserials]]| |
| - | Point Biserial m1 = Mean of correct on Exam for all Candidates that answered correctly. | + | |BiserialCompetency|Future| |
| - | m0 = Mean of correct on Exam for all Candidates that answered incorrectly. | + | |PointBiserialCompetency|See [[stats_concepts#biserial_calculations|Biserials]]| |
| - | n1 = Count of all Candidates that answered correctly. | + | |BiserialCorrectedCompetency|See [[stats_concepts#biserial_calculations|Biserials]]| |
| - | n0 = Count of all Candidates that answered incorrectly. | + | |PointBiserialCorrectedCompetency|See [[stats_concepts#biserial_calculations|Biserials]]| |
| - | s = Standard deviation of Candidate correct on Exam | + | |
| - | n = Total number of Candidates on Exam | + | |
| - | + | ||
| - | ((m_1-m_o ))/((s))* √(((n_1*n_0))/((n * (n - 1))) | + | |
| |ValueLow|Lowest ValueTotal achieved by a Candidate for this Item| | |ValueLow|Lowest ValueTotal achieved by a Candidate for this Item| | ||
| |ValueHigh|Highest ValueTotal achieved by a Candidate for this Item| | |ValueHigh|Highest ValueTotal achieved by a Candidate for this Item| | ||
| Line 47: | Line 42: | ||
| |QtyCorrectTop50|Count of Candidates who responded correctly to Item whose Value total was in top 50% of all Candidates taking Exam| | |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| | |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 FIXME link| | + | |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.| | |Dichotomous|True if Item has one correct response worth 1 point and all other responses are incorrect worth 0 points.| | ||
| - | |IncludeInStats|FIXME explain| | + | |IncludeInStats|See [[Stats_Concepts#Include in Stats|Include in Stats]]| |
| |PROXScore|Future use| | |PROXScore|Future use| | ||
| |PROXProportion|Future use| | |PROXProportion|Future use| | ||
| Line 55: | Line 50: | ||
| |PROXCalibration|Future use| | |PROXCalibration|Future use| | ||
| |PROXCalibrationFinal|Future use| | |PROXCalibrationFinal|Future use| | ||
| - | |PROXCalibrationError |Future use| | + | |PROXCalibrationError|Future use| |
