Hi Christine, That's interesting. What you have offered in your first paragraph is the definition of 'competency' - not of comprehension. And then in your second paragraph, you get a bit closer. But you seem to be assuming a strong behaviourist stance. I can think of many tasks where we may hope for comprehension, but where there may be no observable change in behaviour, eg, a change in emotional tone or evaluation. So, Geoffrey's quest for a means of measuring comprehension or uptake may be some way off. Brian. From: Christine Kent Simple - the ability to do the job in a range of real or simulated situations. "Comprehension" as a word relates only to intellectual awareness. It is only part of any learning story. Can the person who comprehends DO anything in a given situation as a result of that comprehension? Further, can they extrapolate and apply the "comprehension" across a range of new situations.