caa2013 9 10-july2013
TRANSCRIPT
A case-study in compliance training and education for UK Export ControlsVenkat SastryTechnology Enhanced Learning Laboratory (TELL)[email protected]
Word cloud
Word cloud - focussed
Word cloud – structured
Background What was done? Data Analysis Results and Conclusions
Word cloud – structured
Background What was done? Data Analysis Results and Conclusions
Strategic Export Controls
focus
through to4
onlinesupported by and
Initial pilot
and evaluation of current assessment
Various techniques used including
ing
analysis and principle
analysis
and
Questions with clear deficiencies or anomalies identified indicating issues with question item
What was done?
• Why was the pilot question item analysis undertaken?
• Description of the data analysed- 115 question items- 9740 question responses- 974 users
• Expected results – what did we hope to find
Data analysis
• Exploratory data analysis consisted of:- 4 attributes observed:
1) Exposure count2) % of correct answers3) ratio of question stem length to distractor length4) presence of a negative term
- Principle Component Analysis- Clustering Analysis
EDA = direction
Results – Observation of attributes
Question IDs69, 71, 78, 86,176, 84, 81,105,106, 96, 104
100%
50%/50%
Majority incorrect
Results – Clustering Analysis
Perfect cluster shape
Items that may not belong in the cluster
Cluster 1 – Low exposure counts
Cluster 2 – High exposure counts. High % correct
Cluster 3 – High ratio for question stem to distractor
Cluster 5 – Negative present
Cluster 6 – % correct is 100%
Cluster 4 – High ratio for q stem to distractor. High % correct
Question item
Results – Chernoff faces
KeyEach colour represents a cluster.
Attributes mappingExposure count = size% correct = elongationRatio = forehead shapeNegative = jaw shape
Conclusions
• Exploratory data analysis has acted as a guide and highlighted both healthy and weak question items
• Identifies weaker question items
• Gives direction for improvement
• Item design and consistency issues identified (+ve and –ve)
• Results broadly inline with expectations
Recommendations
• Development of visual dashboard based on the data analysis algorithms
• Validation rules should be applied to the question item authoring tool
• Aligning of learning objectives with question items at topic level to improve validity and reliability
• Adoption of a systems approach e.g. extended ADDIE process model
• Identify roles and activities required to manage current Level 1 design
Questions?
QUESTIONS?
Contact details
Peter Jolliffe - [email protected]
Piers MacLean - [email protected]
Venkat Sastry - [email protected]
SEC project website:http://www.strategicexportcontrols.org