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  Certainty-Based assessment

   London Approved Protocol for Teaching
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NB Make sure your system allows POPUPS from UCL. These are needed for several important functions. If you get a warning of a popup block, please 'always allow' popups from UCL. Your browser may have further info under 'Tools'. Click here for advice if files don't load.
US-CBA Is being modified in the U.S.A. by TCFIR and is a derivative web version of the LAPT system developed at University College London (UCL), with current material written mainly at UCL and ICL (Imperial College London). Development was funded by HEFCE, under FDTL4.
US-CBA gives easy access (on any web-compatible computer) for new users to experience and use certainty-based assessment
US-CBA works with files from the www or a local drive, assessment immediately, and not requiring a continuous modem connection.

PROBLEMS: Try 'Shift' + 'Reload' or 'Refresh'. Check popups are not disabled.  Email ANY unexplained problem to (with browser details).
ERRORS / SUGGESTIONS :  Use the Comment Button in an exercise (which automatically includes context information), or email to
ACCESS and CONDITIONS:  Use of this site is free. No liability of any sort is admitted in consequence of such use. Some areas may be password protected.
COPYRIGHT of academic material on this site (text, images) belongs to authors (or to UCL or ICL), and use other than through this web site requires written permission.
USE OF SOFTWARE:  You can easily use this software to run your own local material (see AUTHORING below). Click here for how to do this.
BROWSERS : The following should be OK: Netscape (v.5+), Internet Explorer (v 5+) except on MACs, Safari, Opera (v 7.21).. Please report problems.
NEW MATERIAL: Collaboration on development of new material is a prime objective of this project. Email to
AUTHORING :  Help is available, a manual , authoring tool and Wordprocessor source files are very easy to adapt
DEVELOPERS :Tony Gardner-Medwin and Mike Gahan, UCL. COPYRIGHT: UCL 2002-5 (
Suggestions, comments (open to anyone) :      or email:

LAPT and US-CBA © Coyright
A.R. Gardner-Medwin,  Dept. Physiology, UCL, London WC1E 6BT
All revisions © Copyright TCFIR