Usage Data Summary

Revised March 13, 2003

Study Quarters:

	1 = Oct 1, 2001 - Dec 31, 2001	3 = Apr 1, 2002 - Jun 30, 2002
	2 = Jan 1, 2002 - Mar 31, 2002	4 = Jul 1, 2002 - Sep 30, 2002

Study Quarter	Subject Category	Number of Titles	Control Campus Usage			Experimental Campus Usage
			Print	Electronic	Ratio of Print to Electronic	Print	Electronic	Ratio of Print to Electronic
1	Arts & Humanities	22	209	1,219	0.171	8	2,869	0.003
1	Life & Health Sciences	130	1,181	7,042	0.168	38	19,401	0.002
1	Physical Sciences & Engineering	102	485	10,150	0.048	11	12,270	0.001
1	Social Sciences	26	127	680	0.187	5	1,241	0.004
1	Total	280	2,002	19,091	0.105	62	35,781	0.002
2	Arts & Humanities	22	110	1,582	0.070	5	3,270	0.002
2	Life & Health Sciences	130	963	8,813	0.109	33	22,326	0.001
2	Physical Sciences & Engineering	102	338	13,171	0.026	3	14,046	0.000
2	Social Sciences	26	43	692	0.062	0	1,431	0.000
2	Total	280	1,454	24,258	0.060	41	41,073	0.001
3	Arts & Humanities	22	145	1,964	0.074	24	2,777	0.009
3	Life & Health Sciences	130	877	10,307	0.085	22	22,760	0.001
3	Physical Sciences & Engineering	102	466	17,232	0.027	5	17,153	0.000
3	Social Sciences	26	82	760	0.108	1	1,435	0.001
3	Total	280	1,570	30,263	0.052	52	44,125	0.001
4	Arts & Humanities	22	64	710	0.090	9	1,686	0.005
4	Life & Health Sciences	130	580	8,287	0.070	25	20,097	0.001
4	Physical Sciences & Engineering	102	346	14,204	0.024	5	15,738	0.000
4	Social Sciences	26	28	680	0.041	7	1,680	0.004
4	Total	280	1,018	23,881	0.043	46	39,201	0.001
All	Arts & Humanities	22	528	5,475	0.096	46	10,602	0.004
All	Life & Health Sciences	130	3,601	34,449	0.105	118	84,584	0.001
All	Physical Sciences & Engineering	102	1,635	54,757	0.030	24	59,207	0.000
All	Social Sciences	26	280	2,812	0.100	13	5,787	0.002
All	Grand Total	280	6,044	97,493	0.062	201	160,180	0.001

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Send questions or comments to Gary.Lawrence@ucop.edu
Last updated: March 13, 2003