learning analytics: new thinking supporting educational research
TRANSCRIPT
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Learning AnalyticsNew thinking supporting educational research
Andrew Deacon
Centre for Innovation in Learning and TeachingUniversity of Cape Town
3rd Learning LandsCAPE Conference, 14-16 April 2015, Cape Town
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Outline
• What is changing with ‘analytics’
• Three ways educational data is analyzed
• New questions in educational research
• Changing roles of analytics
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Learning Analytics
… is the measurement, collection, analysis and reporting of data about learners and their contexts, for purposes of understanding and optimising learning and the environments in which it occurs.
https://tekri.athabascau.ca/analytics
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Learning Analytics
data explosion at micro level –enriching and enriched by
meso and macrolevels
Macroregional / national
Mesoinstitution / faculty
Microstudent / course / activity
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LinkedIn: ‘Hottest Skills of 2014’
Source: LinkedIn Official Blog
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How new is Learning Analytics?
• Established: systemic testing,
assessment, learning design, retention
• Emerging: data sources, volume of data,
model discovery, personalisation,
adaptivity
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ANALYTICAL TOOLS
Micro to Meso: Three approaches to educational data
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Three approaches to educational data
1. Psychometrics placing measures on a scale (e.g., in assessment)
2. Educational Data Mining focus on learning over time (e.g., in school)
3. Learning Analytics typically wider contexts (e.g., university-wide)
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[1] Rasch: Guttman Pattern
A B C D E F Total
1 1 1 1 1 1 6
1 1 1 1 1 0 5
1 1 1 1 1 0 5
1 1 1 1 0 0 4
1 1 1 1 0 0 4
1 1 1 1 0 0 4
1 1 1 1 0 0 4
1 1 1 0 0 0 3
1 1 1 0 0 0 3
1 1 0 0 0 0 2
1 0 0 0 0 0 1
0 0 0 0 0 0 0
11 10 9 6 3 1
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Rasch: Item
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Rasch: Person-Item Distribution
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Rasch: Item DIF - detected
The unexpected stands out
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[2] Data Mining: PatternsYear 1 %Passed Year 2 %Passed
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Data Mining: RapidMiner
Will search for relations and assess
how good the model is
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[3] Developing learning analytics
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Students’ use of Vula in a course
Site visits
Chat room activity
Sectioning of students
Polling of students
Content accessed
Submission of assignments
Submission of assignments
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Purdue University's Course Signals
• Early warning signsprovides intervention to students who may not be performing well
• Marks from course
• Time on tasks
• Past performance Source: http://www.itap.purdue.edu/learning/tools/signals
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Advisors – U Michigan
• Advisors are key element
• Data from LMS
– Measures to compare students (LMS performance and LMS usage)
– Classifications (<55% red and >85% green)
– Visualizations of student performance
• Engagement with advisors
– Dashboard
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Measures to compare students
• LMS Gradebook and Assignments
– Student score as percentage of total
– Class mean score as percentage of total
• LMS Presence as proxy for ‘effort’
– Weekly total
– Cumulative total
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Classifications of cohort
Comparisons are intra-class
Performance Change Presence Rank Action
>= 85% Encourage
75% to 85% < 15% Explore
>= 15% < 25% Explore
>= 15% >= 25% Encourage
65% to 75% < 15% < 25% Engage
< 15% >= 25% Explore
>= 15% Explore
55% to 65% >= 10% Explore
< 10% Engage
< 55% Engage
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Advisor support
• Shorten time to intervene
– Weekly update
– Contact ‘red’ students
– Useful to prepare for consultation
• Contextualizing student performance
– Longitude trends (course and degree)
– Identify students who don’t need support
Learning analytics
simply helps inform the
intervention
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ASKING NEW QUESTIONS
Micro to Macro: Examples from MOOCs and social media
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MOOC Completion Rates
http://www.katyjordan.com/MOOCproject.html
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Critical Temporalities
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Completed
Viewed
Week 1 Week 2
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Week 1
Week 2
Week 3
E-mail reminders at start of weeks
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Social Learning
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1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.1 1.11 1.12 1.13 1.14
Week 1: Steps Visted and Comments Made
Comments Visited
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Facebook: all friend relationships
Paul Butler http://www.facebook.com/notes/facebook-engineering/visualizing-friendships/469716398919
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1st year course combinationsat UCT Health
Sciences
Engineering
Humanities
Science
Commerce
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[3] UCT and social media
Prominent links to:
– Flickr
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Twitter: helicopter crash at UCT
2 hours after the
event
• Peak of 140 tweets in 5 minutes
• Media organisations tweets get re-tweeted
• Crash or hard-landing?
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Ian Barbour - http://www.flickr.com/people/barbourians/
Twitter: #RhodesMustFall #UCT
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0 5000 10000 15000 20000 25000
RhodesMustFall
RhodesSoWhite
UCT
Rhodes
TransformUCT
RhodesLetsTalk
RhodesStatue
OccupyBremner
Ikeys
VarsityCup
WhitePrivilege
RhodesWillFall
Twitter: viral #UCT
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UCT on Twitter
Statue protest starts
Statue moved
Occupy UCT’s administration
building
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Amplifying #RhodesMustFall
Mail & Guardian
eNCA news
SisandaNkoala
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CHANGING ROLES OF ANALYTICS
A future with more data
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Correlation and causation
• Correlation does not imply causation
– Covariation is a necessary but not a sufficient condition for causality
– Correlation is not causation (but could be a hint)
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Concerns about Big Data thinking
• Does Big Data…
– change the definition of knowledge
– increase objectivity and accuracy
– analysis improves with more data
– make the context less critical
– availability means using the data is ethical
– reduce digital divides
See (Boyd & Crawford 2012)
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Future scenarios
• Analytics informing educational research:– Identifying unusual patterns - raising questions– Searching for patterns in data – testing models– Supporting experts – developmental cycle
– New questions in new contexts
– Remember the ethical considerations
• Analytics opened up:– Good free / open source software is available
– Good learning materials (e.g., MOOCs) on analytics
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Software references
• Gephi – network analysis, data collection
• NodeXL – network analysis, data collection
• TAGS – Twitter data collection (Google Drive)
• Word cloud – R package (wordcloud)
• RapidMiner – Data mining, predictive analytics
• Excel – spreadsheet, charts
• R – statistical analysis, graphs
• RUMM – Rasch analysis
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Literature references
• Boyd, D., Crawford, K. (2012) Critical Questions for Big Data, Information, Communication & Society, 15:5, 662-679
• Dawson, S. (2010) ‘Seeing’ the learning community: An exploration of the development of a resource for monitoring online student networking. British Journal of Educational Technology, 41(5), 736-752.
• Deacon, A., Paskeviciusat, M. (2011) Visualising activity in learning networks using open data and educational analytics. Southern African Association for Institutional Research Forum, Cape Town.
• Berland, M., Baker, R.S., Blikstein, P. (in press) Educational data mining and learning analytics: Applications to constructionist research. To appear in Technology, Knowledge, and Learning.
• Hansen, D., Shneiderman, B., Smith, M.A. (2011) Analyzing Social Media Networks with NodeXL: Insights from a Connected World, Morgan Kaufmann Publishers, San Francisco, CA.
• Tufte, E. (1981) The visual display of quantitative information. Cheshire, Conn.: Graphics Press.
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South African references