Item Response Theory and Computer Adaptive Testing
A three-day course introducing you to Item Response Theory (IRT) and Computer Adaptive Testing (CAT) using the R open-source statistical computing software and Concerto, the open-source online adaptive test development platform. Get first-hand experience of applying IRT analysis to questionnaire data and create item banks suitable for computer adaptive testing.
- Introduction to R and RStudio
- Basic concepts of Item Response Theory (IRT)
- Generation of calibrated item banks using R packages
- Simulating CATs to assess item bank performance
- Scoring CATs using R
- Administering CATs using Concerto
CAT Demos using Concerto Version 5:
On-the-fly item generation using Concerto V5:
Feedback from previous courses:
| Event Location | Dates and Times | Price per delegate (exc.VAT) | Tutors |
|---|---|---|---|
|
Online (via Zoom) |
14-16 April 2021 (3-day course) Wednesday, Thursday & Friday: |
Click on links below to register. Register as an individual: Business: £995 Register as an organisation: Business: £995
|
Dr Aiden Loe Dr Luning Sun |
Prior experience with R is not necessary. Participants should bring their own laptops with the latest version of R installed ( https://www.r-project.org/ ) and also RStudio (http://www.rstudio.com/ide/download/ )
Certification
All participants will receive a digital copy of their Certificate of Attendance, signed by the course instructors and displaying the University of Cambridge Psychometrics Centre logo.
Before attending:
1. Install the Zoom Client for Meetings. You will receive an invite to the Zoom sessions from instructors after course registration. The native client works better than the browser plug-in.
2. Install the latest version of R from https://www.r-project.org/
3. Install the latest version of RStudio from http://www.rstudio.com/ide/download/
4. Make sure you have a stable internet connection and that your microphone, headphones and webcam are all working in Zoom. You will need to use these throughout the course to communicate with instructors and other delegates.
5. You should expect to receive a link to the Zoom call approximately a week in advance of the training
Schedule
Day 1 – Introduction to R and Rstudio
09.30 – 11.00 R and Rstudio installation, Introduction to R
11.00 - 12.30 Data analysis and R basics
12.30 - 14.00 Lunch break
14.00 - 15.30 Practical
15.30 - 17.00 Introduction to Concerto, Practical examples and exercises, Questions
Day 2 – Item Response Theory (IRT)
09.30 - 11.00 IRT (Theory), Application of IRT models (Practical)
11.00 - 12.30 Different IRT response scales (dichotomous and polytomous) (Theory), Analysing polytomous scales using the Rasch model (Practical)
12.30 - 14.00 Lunch break
14.00 - 15.30 IRT modelling of the CESD depression scale (Theory & Practical)
15.30 - 17.00 IRT diagnostics of the CESD depression scale (Theory & Practical), Practical examples and exercises, Revisions and Questions
Day 3 – Computer Adaptive Testing (CAT) with Concerto
09.30 - 11.00 Computer Adaptive Testing (CAT Theory and Practical)
11.00 - 12.30 Firestar simulation of item bank performance (Practical), Programming a polytomous adaptive test using the catR package (Practical)
12.30 - 14.00 Lunch break
14.00 - 15.30 Introduction to adaptive testing in Concerto (Theory and Practical)
15.30 - 17.00 Final Revision & Exercise, Certificates and Q&A
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