Table 3.

4 × 4 experimental conditions.

6000 K–600 lx Reciting words	6000 K–500 lx Reciting words	5000 K–500 lx Reciting words	3000 K–300 lx Reciting words
6000 K–600 lx Doing test paper	6000 K–500 lx Doing test paper	5000 K–500 lx Doing test paper	3000 K–300 lx Doing Test paper
6000 K–600 lx Browsing essays	6000 K–500 lx Browsing essays	5000 K–600 lx Browsing essays	3000 K–300 lx Browsing essays
6000 K–600 lx Listening to music	6000 K–500 lx Listening to music	5000 K–600 lx Listening to music	3000 K–300 lx Listening to music