@aronald / xxdb
Dimension 3: Efficacy <> efficiency
“BUT if you keep doing it every day till you’re complete AND you don’t care if it takes years THEN it doesn’t really matter.” (xxdb)
For the sake of clarity, we should distinguish two key aspects in this context:
- efficacy (or effectiveness): To which degree can a specific goal be achieved or not at all?
- efficiency: How do we use our resources (mental / physical energy, time, money, etc.) to achieve a specific goal?
Example:
Vocabulary lists with single and decontextualized word pairs (engl. chair = fr. chaise, engl. mother = fr. mère, etc.) are highly efficient to learn.
At the same time, they are highly ineffective and should be avoided at all costs (except for the absolute beginner level), as they lead language learners to produce L2 sentences that are semantically off.
“BUT if you keep doing it every day till you’re complete…” (xxdb)
Learners could study lists of decontextualized single word pairs for years (and many students at school actually do exactly that - to this day!) - just to make the experience that their speaking and writing in the L2 is completely f… ed up!
So the first question should never be: Is the approach/strategy efficient in terms of time, etc., but is it effective? Ineffective but highly efficient approaches are worthless.
The second question is: How efficient is an approach?
This question is also relevant because learners are often busy (yes, even teenagers!) and have other things going on in their life. Therefore, an approach should be as efficient as possible in the long run.
*** Reg. Duolingo in general ***
It´s absolutely ok to play around with this gamified app for a few hours at the beginning or from time to time.
However, it´s a really bad idea to do this exclusively and for months / years on end!
In this case, it is simply a waste of precious lifetime.
To take my example from a concurrent thread:
- Learner A uses Duolingo for 25 min a day 7 days a week for 2 years. After that time he / she has an extremely high score on Duolingo, but barely understands simple sentences in a conversation, doesn´t understand the news, podcasts, audiobooks, isn´t able to read articles, books, etc.
- Learner B uses the ultra-reading-while-listening approach (or sth. similar) for 25 min a day for 2 years (reading more than 3 million words and listening for ca. 350 hours). Learner B has reached an advanced level in reading and listening comprehension. That is: He / she can listen to podcasts / audiobooks, read non-fiction books with ease, etc.
In this scenario, Duolingo is more or less worthless for improving listening and reading comprehension and should therefore be avoided most of the learning time.
The problem here isn´t the inefficiency, but the low degree of efficacy compared to high-volume reading / listening / reading-while-listening, esp. when there are no “Duolingo stories / podcasts” available in the L2 to be studied.
Have a nice weekend
Peter