Table 1: Relation between academic performance and df-t

Groups		N		Mean df-t		SD		Min		Max		F-value		p-value
Excellent		229		1.56		2.549		0		11		8.245		<0.001
Average		156		2.05		2.762		0		12
Below average		215		4.47		2.696		0		10

SD: Standard deviation