Weird. I find 2-back pretty easy, but 3-back difficult (I normally get 50-80% accuracy) and 4-back quite tough (20-50% accuracy). I wonder what a typical dual n-back level is.
Edit—OK, pulled up some actual data for anyone else who’s curious. The 35 University of Bern students trained in the 2008 study by Jaeggi et al. had a mean dual n-back level very close to 3. After 8-19 days of training that increased to 4-5. The 25 National Taiwan Normal University students who trained on dual n-back for this 2009 Studer et al. poster went from a mean n-back level of 2.0 (with a standard deviation ~1.1) to ~4.6 (standard deviation ~2.3) with 20 days training.
Weird. I find 2-back pretty easy, but 3-back difficult (I normally get 50-80% accuracy) and 4-back quite tough (20-50% accuracy). I wonder what a typical dual n-back level is.
Edit—OK, pulled up some actual data for anyone else who’s curious. The 35 University of Bern students trained in the 2008 study by Jaeggi et al. had a mean dual n-back level very close to 3. After 8-19 days of training that increased to 4-5. The 25 National Taiwan Normal University students who trained on dual n-back for this 2009 Studer et al. poster went from a mean n-back level of 2.0 (with a standard deviation ~1.1) to ~4.6 (standard deviation ~2.3) with 20 days training.