Teaching statistics for the future

The MOOC revolution and beyond

Brian Caffo
Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health

Teaching statistics for the future

Outline of the talk

  1. What I supposedly do during the day
  2. A brief taxonomy and history of online educational models
  3. Massive Open Online Courses (MOOCs)
  4. JHU Biostat involvement in Coursera
  5. Novel moving target directions of the field statistics
  6. Data Science series
  7. swirl

Thanks to the dean

  • For taking time out of his busy schedule of cracking down on Delta Tau Chi for this talk

You know you've made it when

Core team

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Plus generous contributions from the

My day job(s)

Connectomics

resting state fMRI

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(Incomplete) characteristics of educational systems

  • Online / in person / blended
  • Active/participatory/interactive learning
  • Scalable / non-scalable
  • Low cost / high cost / freemium
  • Student paced / teacher paced
  • Open / restricted access
  • Flipped / lecture style / blended
  • Open / closed source content
  • Instructor interaction
  • Credentialing
  • Funding model

Examples

  • Traditional in person teaching generally has characterists of: in person, lecture style, non-scalable, high cost, restricted access with a large amount of instructor interaction valued credentialing
  • "Tranditional" online courses are online or blended online and in person and otherwise try to approximate traditional in person classes.
  • Online interactive learning (OIL Code School, Code academy) primary characteristics are student-paced interactive learning
  • Intelligent tutoring systems (swirl), like OILs just not necessarily online
  • Khan Academy is online, interactive, scalable and low cost
  • Other modalities : iTunes U, OpenCourseware, Udemy

MOOCs

Primary characteristics are open access, low cost, scalable, online

(every letter is negotiable, from Wikipedia citing Mathieu Plorde)

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Most visible MOOC instruction sites

Also

Several university/organization-specific sites, platforms and content delivery systems

  • Stanford, CMU, Duke, Harvard, MIT, google ...
  • Varying degrees of content/delivery
  • EdX platform has been open sourced
  • Google course builder (now contributing to EdX)
  • Massive amount of development going into platforms and instruction sites/portals

Coursera platform, videos

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Coursera platform, quizzes

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Coursera platform, peer grading

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Coursera platform, forums

You're on the internets

(Forums can be brutal)

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Johns Hopkins Biostat Coursera classes

Original three

  • Brian Caffo, Roger Peng, Jeff Leek
  • Run 09/2012, 09/2012, 01/2013
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Enrollments by class and offering

Statements of accomplishment by offering

Over time

Over time, MBBC 1

Cumulative enrollment over all classes over time

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Completion rates

  • Students participate in MOOCs for a variety of reasons
  • Numerous students sign up for a course, but do not actively participate
  • Recent MBBC 1
    • 17K students
    • 10K accessed the course site ever
    • 7K watched any video ever
    • 2K submitted any quiz
    • 196 earned a SOA
    • 129 signature track
    • 128 posted to the forums

Some summary statistics

  • Classes considered are MBBC1, MBBC2, CDA, DA, Case, StatReas, fMRI, Tools, Rprog, Clean
  • A total of 776,691 students enrolled
  • 19 class offerings

  • Average of 40,878 students per class

  • Minimum class size of 6,742 for class MBBC2 offering 2

  • Maximum class size of 101,747 for class DA offering 1

Signature track

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  • Verification based on typing patterns (highly unique according to Coursera)
    • Secondary verification via webcams
  • Coursera gives student aid
  • Revenue distribution via agreement between Coursera and partner institution
  • 155 signature track for 20k students in MBBC1 V4
  • Much higher retention and completion rates for signature track
  • Between 1% and 12% Signature track rate for classes (depending on a variety of factors)
  • All of our classes are $49 for sig track

Interesting fallout from doing this

  • Jeff's class was listed as one of the top 10 most enrolled Coursera classes
    • Roger's class has since eclipsed it in cumulative enrollment
  • Brian, Roger, Martin, John have run signature track ($49 per student)
  • Brian's class featured on the front page of the Washington Post
  • Roger interviewed on Anderson Cooper and NPR
  • Scott Zeger introduced class Cased Based Introduction to Statistics
  • Brian introducted MBBC2
  • Martin Lindquist introduced Statistical Analysis of fMRI Data
  • John McGready introduced Statistical Reasoning for Public Health

MOOCs by university


Case studies

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Case studies

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Case studies

Statistics, big data, data science

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Complimentary problems

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Johhs Hopkins Data Science Specialization

Codirected and taught by Roger Peng, Jeff Leek and Brian Caffo

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Courses

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Specialization certificate

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Unique aspects of the program

  • Completely redesigned stat curriculum
  • 9 signature track courses
  • 1 capstone project course
  • Total cost (modular) $490
    • $49 per sig track for 10 classes
  • Each class is four weeks
  • Quizzes, in video quizzes, programming assignments and peer assessment projects
  • Run monthly after initial rollout
  • All content open source
  • Toolbox, R Programming and Getting and Cleaning Data have all run (enrollments of 64k, 62k, 34k resp)

Platform choices

  • Everything done on Coursera
  • All programming in R
  • All lecture notes done in Slidify (common theme)
  • All content open source
  • Version control through git and github
  • (Students will learn and use git)
  • RStudio as an IDE
  • knitr for reproducible documents and report writing

Standard and non-standard stat content

  • Basic probability and math stat
  • Statistical inference
    • Hypothesis tests, confidence intervals, likelihood
    • Brief intro to Bayesian analysis
  • Regression and generalized linear models
  • Statistical machine learning
  • EDA
  • Data analysis
  • Reproducible research, report generation
  • Presentations
  • Interactive graphics (rCharts, shiny, manipulate, googleVis)
  • Data munging, obtaining data
  • Programming
  • Plotting (ggplot2, rCharts, R base graphics)
  • Capstone project

Shiny is pretty neat

Capstone industry partnerships

  • Current negotiations are ongoing for exciting capstone projects
  • Company donates the data to the Specialization that the students analyze for their project
    • Prepare video or documentation outlining the problem
  • University MOUs being finalized with some of the most exciting tech companies

Cost comparison with other programs




A friendlier way to learn R...

Self-paced and interactive

Learn R and stats, together

swirl + Coursera

Get Coursera credit, automatically

Make your own interactive content

swirlstats.com







Thanks!

  • Jeff, Roger, Nick, Sean, Ira
  • Johns Hopkins
  • Bloomberg School of Public Health
  • Department of Biostatistics
  • SMART group
    • Ciprian, Martin, Ani, Vadim
  • Students

My peeps

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