How common are mistakes on Wikipedia?
Because Wikipedia is editable by anyone we can't guarantee you won't stumble across a mistake. But mistakes are fairly rare. External studies have suggested they occur at about the same rate they do in traditional encyclopedias. One thing that is great about Wikipedia is that it allows anyone to correct a mistake. A printed encyclopedia will need to wait for its next edition for a mistake to be fixed. On Wikipedia a mistake can be, and often is, fixed instantly.
But most importantly we are interesed in e-portfolios because there is emerging, often powerful evidence from practitioners and learners of how e-portfolios can promote more profound forms of learning, as well their further potential in supporting for example transition between institutions and stages of education, and in supporting professional development and applications for professional accreditation.
An e-portfolio is a purposeful aggregation of digital items - ideas, evidence, reflections, feedback etc. which 'presents' a selected audience with evidence of a person's learning and/or ability
Behind any product, or presentation, lie rich and complex processes of planning, synthesising, sharing, discussing, reflecting, giving, receifing and responding to feedback.
Descriptions of e-portfolio processes also tend to include the concepts of learners drawing from both informal and and formal learning activities to create their e-portfolios