5 ms·
sorry, here's the page that holds three surveys: http://www.sas.upenn.edu/~duckwort/gritscale.htm http://www.sas.upenn.edu/~duckwort/gritscale.htm
by gerner 16y ago
sorry, here's the page that holds three surveys:
http://www.sas.upenn.edu/~duckwort/gritscale.htm http://www.sas.upenn.edu/~duckwort/gritscale.htm