An Assessment of University Students' Book Reading Levels and Problem Solving Skills

Table 9: Distribution of PSI Scores by the Age Groups

Age Groups			N		x̄			s.d.*
under 20 years old (1)			47		91.68			21.24
between 20 and 25 years old (2)			62		103.56			18.41
over 25 years old (3)			37		95.51			19.79
Total			146		97.70			20.27
Variance	SS**	df***		F****		p*****	difference
Inter-Group	4012.042	2		5.165		.007******
Intra-Group	55536.698	143					2-1
Total	59548.740	145

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