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calculationsmaintenance [2017/02/24 10:41]
127.0.0.1 external edit 		calculationsmaintenance [2017/02/24 11:21] (current)
steveclarke
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-===== Calculations ​Results ​===== +===== Calculations ​Maintenance ​===== 
-Allows the user to select from existing calculated ​Stats Results ​sets and view raw statistical data.  ​They raw statistical data is stored in various database tables that are exposed ​to the user.  ​The columns exposed are controlled by the user using [[gridview|Grid Views]] ​ and can be exported ​to spreadsheet.+Allows the user to delete ​Stats sets from the database.  ​Overtime, some stats sets may no long er be required ​to be retained within ​the database.  ​Calculations Maintenance give the user the ability ​to delete older Stats Sets.
  
-{{:calculationsresults.png?600|}}+{{:calculationsmaintenance.png?600|}}
  
-=== Select ​Stats === +=== Deleting a Stats Set === 
-Exams can have multiple ​Stats Results sets calculated for them.  ​Each Stats Results set is based on the Sessions of registrants that were calculated.  To view a particular ​Stats Results set, the Stats results set must be selected. ​ To do this, click the **Select Stats** button.  ​+The user can filter and sort the Stats Sets in the grid.  ​For more on grid navigation, click [[general_navigation_grids|here]].  To delete ​a Stats Set, click the **X** on the right of the Stats Set's row.  ​The user will be prompted to confirm they want to delete the Stats Set.
  
-{{:​calculationsresultsselectstats.png?600|}}+Depending on the volume of Candidates and Items on the Exam, deleting the various stats records may take some time.  The user is directed to a processing page.  The user can remain on this page viewing the deletion progress or navigate to another area of Item Writing while the process continues in the back ground.
  
-This will open a Stats Selector.  Here, the user can use the Stats Selector grid to filter to the Stats Result they wish to view.  For more on grid navigation, click [[general_navigation_grids|here]]. ​ Once they select a Stats Result set, click the **Select** button.+{{:​calculationsmaintenancedelete.png?600|}}
  
-=== Select Stats Type === +Note, so long as the Candidate responses exist and the Exam answer key is unchanged ​a deleted ​Stats set can be recreated by recalculating ​the Exam.
-Once the Stats Set is selected, the user then has to select ​the Stats Type they are going to view.  To select ​a Stats Type use the drop down selector (outlined in red) and once selected click the **Generate** button (outlined in green). ​ This will populate the grid with the selected Stats Type for the Selected ​Stats set. +
- +
-The user can add or remove columns from the [[general_navigation_grids|grid]] and can save their [[gridview|Grid Views]] (collection of exposed columns). ​ By clicking the grid's **Export** button on the toolbar, they can export the Stats to spreadsheet. +
- +
-{{:​CalculationsResultsStatsType.png?​600|}} +
- +
-{{:​CalculationsResultsSelected.png?​600|}} +
- +
-=== Stats Types === +
-CE exposes 10 different Stats Types +
- +
-^Title^Description^ +
-|[[stats_candidate|Candidate Exam Stats]]|How each Candidate performed on the Exam| +
-|[[stats_candidate_section|Candidate Section Stats]]|How each Candidate performed on each Section of the Exam| +
-|[[stats_candidate_item|Candidate Item Stats]]|How each Candidate performed on each Item of the Exam| +
-|[[stats_candidate_competency|Candidate Competency Stats]]|How each Candidate performed on each unique Competency of all the Items on the Exam| +
-|[[stats_exam|Exam Stats]]|All Candidates performance on the Exam.  ​Averages,​ min, max score, etc.| +
-|[[stats_section|Section Stats]]|All Candidates performance on the each Section of the Exam.  Averages, min, max score, etc.| +
-|[[stats_item|Item Stats]]|All Candidates performance on the each Item of the Exam.  Averages, min, max score, biserials, etc.| +
-|[[stats_item_distribution|Item Distribution Stats]]|The response distributions are counts of Candidates in certain ranking thresholds that match a given response. The rankings for the candidates is based on their Ranking of ValueTotal on the Exam compared to all other Candidates performance.| +
-|[[stats_competency|Competency Stats]]|All Candidates performance on the each unique Competency oof all Items of the Exam.  Averages, min, max score, etc.| +
-|[[stats_competency_distribution|Competency Distribution Stats]]|Aggregate of Item Response Distribution Statistics, grouped by Competency|+
  
 === Tab Strip === === Tab Strip ===
-The tab strip at the top of the page allows the user to go back to the [[CalculationsProcess|Process]] page, to the [[CalculationsIncludeExclude|Include/​Exclude]] page, to the [[markentry|Mark Entry]] page, to the [[Calculationsgraph|Graph]] page or the [[calculationsmaitnenance|Maintenance]] page.+The tab strip at the top of the page allows the user to go back to the [[CalculationsProcess|Process]] page, to the [[CalculationsIncludeExclude|Include/​Exclude]] page, to the [[markentry|Mark Entry]] page, to the [[Calculationsgraph|Graph]] page or the [[calculationsresults|Results]] page.