Means and Proportion Tests by Year of College

Casual Contraception in Casual Sex
Means and Proportion Tests by Year of College

Table 1. T-Tests for Coitus Samples by Grade
	Women							Men
	Year 1	Year 2	sig	Year 3	sig	Year 4	sig	Year 1	Year 2	sig	Year 3	sig	Year 4	sig

Had Unprotected Casual Sex	0.08	0.12	***	0.14	***	0.16	***	0.07	0.11	***	0.12	***	0.14	***
Year of College
Freshman Year	1.00	0.00		0.00		0.00		1.00	0.00		0.00		0.00
Sophomore Year	0.00	1.00		0.00		0.00		0.00	1.00		0.00		0.00
Junior Year	0.00	0.00		1.00		0.00		0.00	0.00		1.00		0.00
Senior Year	0.00	0.00		0.00		1.00		0.00	0.00		0.00		1.00
Mother's Educational Attainment
Mother Received a High School Education or Less	0.21	0.21	***	0.23	***	0.22	***	0.19	0.19	***	0.19	***	0.21	***
Mother Received Some College Education	0.22	0.24	^**	0.27	***	0.25	***	0.23	0.25	***	0.24	***	0.21	***
Mother Received a Bachelor's Degree	0.36	0.33	***	0.31	***	0.29	***	0.33	0.32	***	0.32	***	0.31	***
Mother Received a Graduate Degree	0.22	0.22	***	0.20	***	0.24	^**	0.25	0.25	***	0.25	***	0.27	***
Population Density During High School
Rural	0.06	0.07	***	0.06	***	0.05	***	0.04	0.07	***	0.05	***	0.05	***
Small Town	0.29	0.23	***	0.21	***	0.20	***	0.25	0.22	***	0.18	***	0.17	***
Suburban	0.34	0.35	***	0.38	***	0.40	***	0.38	0.36	***	0.35	***	0.39	***
Medium City	0.21	0.22	***	0.22	***	0.23	***	0.23	0.21	***	0.27	^**	0.26	***
Large City	0.10	0.13	***	0.13	***	0.12	^**	0.09	0.13	***	0.16	***	0.13	***
Respondent's Race
White	0.78	0.72	***	0.71	***	0.69	***	0.79	0.70	***	0.72	***	0.69	***
Black	0.04	0.04	***	0.06	***	0.07	***	0.04	0.09	***	0.07	***	0.06	***
Hispanic	0.10	0.12	***	0.12	***	0.10	***	0.09	0.10	***	0.08	***	0.12	***
Asian	0.05	0.07	***	0.07	^**	0.10	***	0.04	0.07	***	0.10	***	0.10	***
Other Race	0.03	0.04	***	0.05	***	0.04	***	0.03	0.03	***	0.04	***	0.04	***
Mixed Race	0.13	0.14	***	0.11	^**	0.13	***	0.14	0.12	***	0.14	***	0.11	***
Partner's Race
White	0.74	0.69	***	0.67	***	0.66	***	0.81	0.68	***	0.68	***	0.67	***
Black	0.06	0.08	***	0.08	***	0.09	***	0.02	0.05	***	0.04	^**	0.03	***
Hispanic	0.07	0.08	***	0.10	***	0.08	***	0.05	0.07	***	0.07	^**	0.07	***
Asian	0.03	0.05	***	0.05	***	0.06	***	0.05	0.09	***	0.10	***	0.13	***
Mixed Race	0.08	0.07	***	0.08	***	0.08	***	0.06	0.09	***	0.08	***	0.08	***
Other or Not Indicated	0.02	0.02	***	0.03	^**	0.03	***	0.02	0.01	***	0.03	***	0.02	***
Childhood Religion
Catholic	0.44	0.41	***	0.39	***	0.37	***	0.45	0.43	***	0.37	***	0.35	***
Jewish	0.11	0.08	***	0.08	***	0.07	***	0.12	0.10	***	0.10	***	0.10	***
Other Religion	0.13	0.15	***	0.17	***	0.19	***	0.12	0.13	***	0.14	***	0.12	***
Protestant	0.12	0.14	***	0.16	***	0.16	***	0.13	0.15	***	0.18	***	0.19	***
None	0.20	0.22	^**	0.19	***	0.22	***	0.18	0.19	***	0.21	***	0.24	***
Immigrant	0.06	0.07	***	0.08	***	0.09	***	0.08	0.09	***	0.10	^**	0.10	^**
Observations	2499	1737	4236	1471	3970	1437	3936	1048	811	1859	663	1711	609	1657

Table 2. T-Tests for Condom Samples by Grade
	Women							Men
	Year 1	Year 2	sig	Year 3	sig	Year 4	sig	Year 1	Year 2	sig	Year 3	sig	Year 4	sig

Year of College
Freshman Year	1.00	0.00		0.00		0.00		1.00	0.00		0.00		0.00
Sophomore Year	0.00	1.00		0.00		0.00		0.00	1.00		0.00		0.00
Junior Year	0.00	0.00		1.00		0.00		0.00	0.00		1.00		0.00
Senior Year	0.00	0.00		0.00		1.00		0.00	0.00		0.00		1.00
Mother's Educational Attainment
Mother Received a High School Education or Less	0.23	0.25	***	0.23	***	0.24	***	0.23	0.22	***	0.17	^**	0.22	***
Mother Received Some College Education	0.21	0.27	***	0.28	***	0.26	***	0.23	0.26	***	0.27	***	0.20	***
Mother Received a Bachelor's Degree	0.36	0.28	***	0.29	***	0.28	***	0.34	0.31	***	0.35	***	0.32	***
Mother Received a Graduate Degree	0.20	0.20	***	0.19	***	0.22	***	0.20	0.20	***	0.21	***	0.27	***
Population Density During High School
Rural	0.06	0.07	***	0.05	***	0.06	***	0.06	0.08	***	0.06	***	0.04	***
Small Town	0.33	0.24	***	0.23	***	0.23	***	0.29	0.20	***	0.21	***	0.15	***
Suburban	0.27	0.31	***	0.38	***	0.39	***	0.34	0.34	***	0.30	***	0.42	***
Medium City	0.23	0.22	***	0.22	***	0.21	***	0.21	0.24	***	0.26	***	0.25	***
Large City	0.10	0.16	***	0.12	***	0.11	***	0.11	0.14	***	0.17	***	0.14	***
Respondent's Race
White	0.78	0.72	***	0.76	***	0.71	***	0.79	0.67	***	0.76	***	0.71	***
Black	0.05	0.06	***	0.06	***	0.06	***	0.05	0.12	***	0.05	***	0.04	***
Hispanic	0.08	0.12	***	0.09	***	0.10	^**	0.09	0.09	***	0.09	***	0.12	***
Asian	0.06	0.06	***	0.04	***	0.09	***	0.03	0.07	***	0.06	^**	0.09	***
Other Race	0.03	0.04	***	0.05	^**	0.03	***	0.04	0.04	***	0.04	***	0.03	***
Mixed Race	0.14	0.14	***	0.11	^**	0.13	***	0.15	0.15	***	0.14	***	0.08	***
Partner's Race
White	0.73	0.66	***	0.67	***	0.70	***	0.81	0.69	***	0.74	***	0.69	***
Black	0.08	0.10	***	0.10	***	0.10	***	0.03	0.06	^**	0.03	***	0.02	***
Hispanic	0.06	0.09	***	0.10	***	0.07	***	0.04	0.08	***	0.06	***	0.07	^**
Asian	0.03	0.04	***	0.04	***	0.06	***	0.03	0.05	***	0.06	***	0.15	***
Mixed Race	0.09	0.09	***	0.08	***	0.06	***	0.07	0.10	^**	0.07	***	0.06	***
Other or Not Indicated	0.02	0.02	***	0.02	***	0.02	***	0.02	0.01	***	0.03	***	0.01	***
Childhood Religion
Catholic	0.41	0.43	***	0.38	***	0.40	***	0.48	0.42	^**	0.40	***	0.38	***
Jewish	0.08	0.08	***	0.09	***	0.05	***	0.11	0.09	***	0.10	***	0.09	***
Other Religion	0.14	0.14	***	0.20	***	0.20	***	0.12	0.14	***	0.13	***	0.14	***
Protestant	0.13	0.13	***	0.13	***	0.15	***	0.11	0.15	***	0.15	***	0.19	***
None	0.24	0.22	***	0.20	^**	0.20	***	0.17	0.20	***	0.23	^**	0.21	***
Immigrant	0.05	0.08	***	0.07	^**	0.08	***	0.08	0.09	***	0.08	***	0.10	***
Observations	758	581	1339	608	1366	635	1393	349	337	686	270	619	296	645

Table 3. Among Students Where Mother's Education = Mother Received a High School Education or Less: Means for Coitus Samples by Grade
	Women				Men
	Year 1	Year 2	Year 3	Year 4	Year 1	Year 2	Year 3	Year 4

Had Unprotected Casual Sex	0.07	0.16	0.13	0.18	0.05	0.15	0.10	0.14
Year of College
Freshman Year	1.00	0.00	0.00	0.00	1.00	0.00	0.00	0.00
Sophomore Year	0.00	1.00	0.00	0.00	0.00	1.00	0.00	0.00
Junior Year	0.00	0.00	1.00	0.00	0.00	0.00	1.00	0.00
Senior Year	0.00	0.00	0.00	1.00	0.00	0.00	0.00	1.00
Mother's Educational Attainment
Mother Received a High School Education or Less	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Mother Received Some College Education	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received a Bachelor's Degree	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received a Graduate Degree	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Population Density During High School
Rural	0.08	0.08	0.06	0.09	0.06	0.10	0.06	0.03
Small Town	0.32	0.22	0.21	0.23	0.30	0.22	0.17	0.19
Suburban	0.23	0.28	0.31	0.33	0.27	0.24	0.33	0.37
Medium City	0.22	0.24	0.25	0.22	0.26	0.25	0.27	0.27
Large City	0.16	0.19	0.17	0.12	0.12	0.20	0.16	0.14
Respondent's Race
White	0.61	0.54	0.53	0.57	0.58	0.46	0.48	0.50
Black	0.04	0.05	0.07	0.06	0.06	0.11	0.11	0.03
Hispanic	0.23	0.26	0.23	0.20	0.23	0.26	0.17	0.26
Asian	0.07	0.09	0.10	0.12	0.07	0.13	0.19	0.18
Other Race	0.05	0.05	0.07	0.05	0.06	0.03	0.06	0.03
Mixed Race	0.15	0.10	0.11	0.12	0.12	0.14	0.15	0.13
Partner's Race
White	0.64	0.56	0.55	0.56	0.66	0.54	0.52	0.62
Black	0.06	0.09	0.09	0.10	0.04	0.06	0.06	0.01
Hispanic	0.17	0.19	0.19	0.16	0.16	0.16	0.12	0.13
Asian	0.05	0.06	0.08	0.08	0.06	0.10	0.16	0.18
Mixed Race	0.06	0.07	0.06	0.07	0.06	0.10	0.10	0.05
Other or Not Indicated	0.03	0.02	0.03	0.02	0.03	0.03	0.03	0.02
Childhood Religion
Catholic	0.54	0.58	0.52	0.51	0.59	0.55	0.46	0.43
Jewish	0.03	0.01	0.02	0.02	0.01	0.03	0.02	0.01
Other Religion	0.14	0.15	0.20	0.23	0.17	0.17	0.18	0.15
Protestant	0.08	0.10	0.13	0.10	0.10	0.12	0.20	0.09
None	0.21	0.16	0.12	0.14	0.12	0.14	0.14	0.32
Immigrant	0.08	0.09	0.12	0.11	0.09	0.14	0.10	0.16
Observations	516	360	331	316	200	155	124	125

Table 4. Among Students Where Mother's Education = Mother Received Some College Education: Means for Coitus Samples by Grade
	Women				Men
	Year 1	Year 2	Year 3	Year 4	Year 1	Year 2	Year 3	Year 4

Had Unprotected Casual Sex	0.07	0.12	0.15	0.19	0.08	0.11	0.12	0.15
Year of College
Freshman Year	1.00	0.00	0.00	0.00	1.00	0.00	0.00	0.00
Sophomore Year	0.00	1.00	0.00	0.00	0.00	1.00	0.00	0.00
Junior Year	0.00	0.00	1.00	0.00	0.00	0.00	1.00	0.00
Senior Year	0.00	0.00	0.00	1.00	0.00	0.00	0.00	1.00
Mother's Educational Attainment
Mother Received a High School Education or Less	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received Some College Education	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Mother Received a Bachelor's Degree	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received a Graduate Degree	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Population Density During High School
Rural	0.08	0.10	0.06	0.04	0.06	0.04	0.06	0.04
Small Town	0.31	0.26	0.22	0.22	0.27	0.22	0.18	0.25
Suburban	0.30	0.32	0.35	0.38	0.34	0.39	0.34	0.31
Medium City	0.23	0.23	0.24	0.24	0.26	0.22	0.31	0.30
Large City	0.08	0.09	0.13	0.12	0.07	0.12	0.12	0.10
Respondent's Race
White	0.74	0.71	0.73	0.67	0.77	0.66	0.73	0.74
Black	0.06	0.04	0.07	0.10	0.05	0.13	0.05	0.06
Hispanic	0.11	0.13	0.11	0.09	0.10	0.08	0.08	0.12
Asian	0.06	0.07	0.05	0.10	0.05	0.08	0.09	0.05
Other Race	0.04	0.05	0.04	0.04	0.04	0.05	0.04	0.04
Mixed Race	0.18	0.17	0.12	0.16	0.18	0.14	0.13	0.12
Partner's Race
White	0.69	0.69	0.66	0.60	0.82	0.67	0.70	0.71
Black	0.08	0.09	0.10	0.13	0.03	0.05	0.05	0.08
Hispanic	0.09	0.08	0.09	0.09	0.04	0.05	0.06	0.07
Asian	0.03	0.04	0.05	0.06	0.04	0.08	0.10	0.09
Mixed Race	0.09	0.08	0.07	0.09	0.06	0.10	0.06	0.04
Other or Not Indicated	0.02	0.01	0.03	0.04	0.00	0.03	0.02	0.02
Childhood Religion
Catholic	0.51	0.48	0.40	0.37	0.52	0.42	0.43	0.41
Jewish	0.06	0.03	0.05	0.03	0.05	0.05	0.09	0.06
Other Religion	0.14	0.16	0.20	0.20	0.15	0.18	0.16	0.13
Protestant	0.12	0.12	0.15	0.15	0.12	0.15	0.13	0.22
None	0.18	0.20	0.21	0.24	0.16	0.19	0.19	0.18
Immigrant	0.04	0.04	0.04	0.07	0.09	0.07	0.08	0.12
Observations	546	418	394	361	244	201	158	129

Table 5. Among Students Where Mother's Education = Mother Received a Bachelor's Degree: Means for Coitus Samples by Grade
	Women				Men
	Year 1	Year 2	Year 3	Year 4	Year 1	Year 2	Year 3	Year 4

Had Unprotected Casual Sex	0.09	0.10	0.14	0.17	0.06	0.11	0.14	0.14
Year of College
Freshman Year	1.00	0.00	0.00	0.00	1.00	0.00	0.00	0.00
Sophomore Year	0.00	1.00	0.00	0.00	0.00	1.00	0.00	0.00
Junior Year	0.00	0.00	1.00	0.00	0.00	0.00	1.00	0.00
Senior Year	0.00	0.00	0.00	1.00	0.00	0.00	0.00	1.00
Mother's Educational Attainment
Mother Received a High School Education or Less	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received Some College Education	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received a Bachelor's Degree	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Mother Received a Graduate Degree	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Population Density During High School
Rural	0.06	0.06	0.05	0.04	0.04	0.06	0.05	0.07
Small Town	0.29	0.23	0.22	0.19	0.24	0.27	0.19	0.13
Suburban	0.37	0.41	0.46	0.39	0.43	0.38	0.38	0.44
Medium City	0.20	0.22	0.19	0.25	0.23	0.18	0.21	0.27
Large City	0.07	0.09	0.08	0.12	0.07	0.12	0.17	0.10
Respondent's Race
White	0.84	0.78	0.77	0.75	0.84	0.79	0.77	0.74
Black	0.03	0.05	0.04	0.07	0.04	0.06	0.06	0.04
Hispanic	0.05	0.08	0.09	0.07	0.05	0.06	0.06	0.07
Asian	0.05	0.05	0.06	0.07	0.03	0.06	0.07	0.11
Other Race	0.03	0.04	0.04	0.04	0.03	0.02	0.05	0.03
Mixed Race	0.12	0.14	0.10	0.11	0.15	0.09	0.14	0.10
Partner's Race
White	0.79	0.74	0.72	0.72	0.87	0.73	0.72	0.70
Black	0.05	0.07	0.06	0.09	0.01	0.05	0.02	0.02
Hispanic	0.03	0.04	0.06	0.05	0.02	0.04	0.06	0.03
Asian	0.03	0.05	0.04	0.05	0.03	0.07	0.08	0.13
Mixed Race	0.07	0.06	0.08	0.06	0.05	0.11	0.09	0.10
Other or Not Indicated	0.02	0.03	0.03	0.03	0.02	0.00	0.03	0.02
Childhood Religion
Catholic	0.40	0.35	0.37	0.36	0.42	0.40	0.34	0.28
Jewish	0.13	0.11	0.12	0.08	0.14	0.14	0.14	0.14
Other Religion	0.13	0.13	0.16	0.18	0.09	0.12	0.14	0.10
Protestant	0.16	0.16	0.15	0.17	0.15	0.16	0.15	0.23
None	0.19	0.26	0.20	0.21	0.20	0.19	0.23	0.26
Immigrant	0.05	0.07	0.09	0.09	0.06	0.08	0.11	0.08
Observations	899	571	451	417	347	256	214	188

Table 6. Among Students Where Mother's Education = Mother Received a Graduate Degree: Means for Coitus Samples by Grade
	Women				Men
	Year 1	Year 2	Year 3	Year 4	Year 1	Year 2	Year 3	Year 4

Had Unprotected Casual Sex	0.09	0.10	0.14	0.13	0.08	0.10	0.10	0.14
Year of College
Freshman Year	1.00	0.00	0.00	0.00	1.00	0.00	0.00	0.00
Sophomore Year	0.00	1.00	0.00	0.00	0.00	1.00	0.00	0.00
Junior Year	0.00	0.00	1.00	0.00	0.00	0.00	1.00	0.00
Senior Year	0.00	0.00	0.00	1.00	0.00	0.00	0.00	1.00
Mother's Educational Attainment
Mother Received a High School Education or Less	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received Some College Education	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received a Bachelor's Degree	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received a Graduate Degree	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Population Density During High School
Rural	0.03	0.04	0.06	0.05	0.03	0.08	0.01	0.04
Small Town	0.23	0.22	0.18	0.17	0.21	0.18	0.20	0.14
Suburban	0.43	0.37	0.39	0.49	0.46	0.42	0.32	0.42
Medium City	0.20	0.22	0.20	0.18	0.18	0.22	0.28	0.20
Large City	0.11	0.16	0.16	0.11	0.12	0.11	0.19	0.20
Respondent's Race
White	0.88	0.79	0.79	0.76	0.89	0.81	0.81	0.73
Black	0.02	0.04	0.05	0.06	0.03	0.09	0.07	0.09
Hispanic	0.03	0.06	0.04	0.05	0.04	0.05	0.03	0.06
Asian	0.05	0.07	0.06	0.11	0.02	0.04	0.06	0.07
Other Race	0.03	0.03	0.06	0.03	0.02	0.02	0.03	0.05
Mixed Race	0.10	0.13	0.14	0.12	0.09	0.12	0.13	0.10
Partner's Race
White	0.81	0.73	0.72	0.74	0.82	0.75	0.72	0.66
Black	0.05	0.09	0.09	0.06	0.01	0.03	0.04	0.02
Hispanic	0.04	0.05	0.05	0.04	0.01	0.06	0.05	0.05
Asian	0.01	0.04	0.02	0.06	0.07	0.10	0.08	0.13
Mixed Race	0.08	0.08	0.09	0.08	0.06	0.06	0.09	0.10
Other or Not Indicated	0.01	0.02	0.03	0.02	0.03	0.01	0.03	0.02
Childhood Religion
Catholic	0.32	0.28	0.25	0.27	0.32	0.37	0.27	0.34
Jewish	0.19	0.15	0.14	0.14	0.23	0.15	0.11	0.15
Other Religion	0.14	0.15	0.14	0.13	0.10	0.07	0.12	0.10
Protestant	0.12	0.17	0.23	0.20	0.12	0.17	0.24	0.20
None	0.23	0.24	0.24	0.26	0.23	0.24	0.26	0.22
Immigrant	0.07	0.09	0.08	0.08	0.07	0.08	0.10	0.07
Observations	538	388	295	343	257	199	167	167

Table 7. Among Students Where Mother's Education = Mother Received a High School Education or Less: Means for Condom Samples by Grade
	Women				Men
	Year 1	Year 2	Year 3	Year 4	Year 1	Year 2	Year 3	Year 4

Year of College
Freshman Year	1.00	0.00	0.00	0.00	1.00	0.00	0.00	0.00
Sophomore Year	0.00	1.00	0.00	0.00	0.00	1.00	0.00	0.00
Junior Year	0.00	0.00	1.00	0.00	0.00	0.00	1.00	0.00
Senior Year	0.00	0.00	0.00	1.00	0.00	0.00	0.00	1.00
Mother's Educational Attainment
Mother Received a High School Education or Less	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Mother Received Some College Education	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received a Bachelor's Degree	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received a Graduate Degree	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Population Density During High School
Rural	0.11	0.07	0.04	0.10	0.04	0.11	0.04	0.00
Small Town	0.34	0.22	0.25	0.25	0.35	0.17	0.24	0.12
Suburban	0.13	0.26	0.29	0.31	0.26	0.29	0.28	0.36
Medium City	0.26	0.23	0.25	0.23	0.21	0.25	0.22	0.31
Large City	0.16	0.22	0.17	0.10	0.15	0.17	0.22	0.20
Respondent's Race
White	0.66	0.55	0.57	0.62	0.63	0.51	0.52	0.52
Black	0.05	0.09	0.08	0.07	0.09	0.11	0.07	0.02
Hispanic	0.16	0.24	0.23	0.19	0.17	0.21	0.20	0.30
Asian	0.06	0.09	0.06	0.08	0.01	0.13	0.15	0.14
Other Race	0.07	0.03	0.06	0.04	0.10	0.04	0.07	0.03
Mixed Race	0.14	0.09	0.06	0.16	0.15	0.12	0.15	0.12
Partner's Race
White	0.61	0.53	0.51	0.61	0.70	0.55	0.63	0.62
Black	0.11	0.09	0.13	0.09	0.02	0.08	0.00	0.02
Hispanic	0.13	0.20	0.21	0.14	0.12	0.15	0.13	0.14
Asian	0.05	0.07	0.06	0.08	0.06	0.12	0.13	0.16
Mixed Race	0.08	0.09	0.07	0.08	0.04	0.08	0.07	0.05
Other or Not Indicated	0.02	0.03	0.02	0.01	0.05	0.03	0.04	0.02
Childhood Religion
Catholic	0.46	0.54	0.47	0.50	0.62	0.49	0.46	0.52
Jewish	0.02	0.02	0.03	0.01	0.01	0.01	0.02	0.00
Other Religion	0.16	0.17	0.27	0.24	0.12	0.21	0.17	0.16
Protestant	0.11	0.11	0.08	0.12	0.09	0.12	0.20	0.05
None	0.25	0.16	0.15	0.12	0.16	0.16	0.15	0.28
Immigrant	0.05	0.10	0.13	0.10	0.10	0.12	0.07	0.17
Observations	173	148	142	153	81	75	46	64

Table 8. Among Students Where Mother's Education = Mother Received Some College Education: Means for Condom Samples by Grade
	Women				Men
	Year 1	Year 2	Year 3	Year 4	Year 1	Year 2	Year 3	Year 4

Year of College
Freshman Year	1.00	0.00	0.00	0.00	1.00	0.00	0.00	0.00
Sophomore Year	0.00	1.00	0.00	0.00	0.00	1.00	0.00	0.00
Junior Year	0.00	0.00	1.00	0.00	0.00	0.00	1.00	0.00
Senior Year	0.00	0.00	0.00	1.00	0.00	0.00	0.00	1.00
Mother's Educational Attainment
Mother Received a High School Education or Less	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received Some College Education	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Mother Received a Bachelor's Degree	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received a Graduate Degree	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Population Density During High School
Rural	0.06	0.08	0.05	0.05	0.10	0.07	0.07	0.08
Small Town	0.34	0.28	0.24	0.19	0.32	0.17	0.18	0.22
Suburban	0.28	0.31	0.33	0.39	0.33	0.38	0.29	0.31
Medium City	0.23	0.23	0.26	0.23	0.15	0.26	0.32	0.31
Large City	0.09	0.10	0.12	0.13	0.10	0.11	0.15	0.08
Respondent's Race
White	0.73	0.77	0.78	0.70	0.77	0.67	0.75	0.76
Black	0.10	0.05	0.07	0.12	0.06	0.17	0.05	0.02
Hispanic	0.08	0.07	0.06	0.07	0.12	0.05	0.11	0.12
Asian	0.06	0.05	0.03	0.08	0.05	0.06	0.04	0.03
Other Race	0.02	0.06	0.06	0.03	0.00	0.06	0.04	0.07
Mixed Race	0.21	0.17	0.13	0.11	0.20	0.20	0.15	0.10
Partner's Race
White	0.66	0.71	0.70	0.62	0.80	0.71	0.71	0.68
Black	0.11	0.10	0.12	0.16	0.06	0.07	0.05	0.05
Hispanic	0.07	0.08	0.08	0.08	0.01	0.03	0.05	0.05
Asian	0.02	0.02	0.02	0.03	0.02	0.02	0.05	0.14
Mixed Race	0.12	0.08	0.08	0.05	0.10	0.14	0.11	0.05
Other or Not Indicated	0.02	0.01	0.01	0.05	0.00	0.02	0.01	0.03
Childhood Religion
Catholic	0.45	0.48	0.37	0.35	0.53	0.39	0.41	0.44
Jewish	0.04	0.06	0.06	0.02	0.07	0.07	0.10	0.07
Other Religion	0.17	0.15	0.22	0.21	0.16	0.16	0.16	0.14
Protestant	0.14	0.11	0.15	0.17	0.12	0.18	0.14	0.20
None	0.20	0.20	0.19	0.25	0.11	0.20	0.19	0.15
Immigrant	0.07	0.03	0.05	0.07	0.09	0.07	0.10	0.12
Observations	162	154	171	165	81	87	73	59

Table 9. Among Students Where Mother's Education = Mother Received a Bachelor's Degree: Means for Condom Samples by Grade
	Women				Men
	Year 1	Year 2	Year 3	Year 4	Year 1	Year 2	Year 3	Year 4

Year of College
Freshman Year	1.00	0.00	0.00	0.00	1.00	0.00	0.00	0.00
Sophomore Year	0.00	1.00	0.00	0.00	0.00	1.00	0.00	0.00
Junior Year	0.00	0.00	1.00	0.00	0.00	0.00	1.00	0.00
Senior Year	0.00	0.00	0.00	1.00	0.00	0.00	0.00	1.00
Mother's Educational Attainment
Mother Received a High School Education or Less	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received Some College Education	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received a Bachelor's Degree	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Mother Received a Graduate Degree	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Population Density During High School
Rural	0.07	0.04	0.04	0.04	0.06	0.06	0.08	0.05
Small Town	0.35	0.26	0.21	0.24	0.27	0.28	0.19	0.15
Suburban	0.29	0.38	0.48	0.41	0.35	0.30	0.36	0.48
Medium City	0.23	0.19	0.19	0.22	0.25	0.20	0.22	0.24
Large City	0.07	0.13	0.08	0.08	0.08	0.16	0.15	0.07
Respondent's Race
White	0.85	0.77	0.83	0.77	0.85	0.75	0.85	0.80
Black	0.03	0.05	0.03	0.03	0.04	0.09	0.04	0.02
Hispanic	0.04	0.09	0.06	0.08	0.04	0.08	0.05	0.06
Asian	0.07	0.05	0.05	0.08	0.04	0.05	0.02	0.10
Other Race	0.01	0.04	0.03	0.03	0.03	0.03	0.03	0.02
Mixed Race	0.11	0.14	0.10	0.14	0.16	0.11	0.13	0.05
Partner's Race
White	0.81	0.71	0.73	0.77	0.89	0.75	0.75	0.70
Black	0.05	0.08	0.07	0.08	0.02	0.05	0.03	0.01
Hispanic	0.02	0.02	0.06	0.03	0.02	0.07	0.06	0.03
Asian	0.03	0.05	0.05	0.06	0.02	0.03	0.05	0.13
Mixed Race	0.08	0.10	0.07	0.05	0.05	0.10	0.07	0.12
Other or Not Indicated	0.01	0.04	0.02	0.01	0.01	0.00	0.03	0.01
Childhood Religion
Catholic	0.40	0.39	0.40	0.41	0.50	0.41	0.42	0.28
Jewish	0.09	0.10	0.12	0.06	0.11	0.16	0.16	0.12
Other Religion	0.13	0.10	0.14	0.19	0.08	0.12	0.11	0.15
Protestant	0.14	0.13	0.13	0.14	0.14	0.13	0.12	0.22
None	0.24	0.28	0.21	0.20	0.16	0.18	0.20	0.23
Immigrant	0.04	0.06	0.07	0.08	0.08	0.08	0.05	0.06
Observations	271	165	177	177	118	106	95	94

Table 10. Among Students Where Mother's Education = Mother Received a Graduate Degree: Means for Condom Samples by Grade
	Women				Men
	Year 1	Year 2	Year 3	Year 4	Year 1	Year 2	Year 3	Year 4

Year of College
Freshman Year	1.00	0.00	0.00	0.00	1.00	0.00	0.00	0.00
Sophomore Year	0.00	1.00	0.00	0.00	0.00	1.00	0.00	0.00
Junior Year	0.00	0.00	1.00	0.00	0.00	0.00	1.00	0.00
Senior Year	0.00	0.00	0.00	1.00	0.00	0.00	0.00	1.00
Mother's Educational Attainment
Mother Received a High School Education or Less	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received Some College Education	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received a Bachelor's Degree	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mother Received a Graduate Degree	1.00	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Population Density During High School
Rural	0.01	0.06	0.07	0.04	0.03	0.10	0.04	0.04
Small Town	0.28	0.20	0.22	0.21	0.20	0.16	0.27	0.11
Suburban	0.39	0.29	0.40	0.45	0.43	0.39	0.23	0.49
Medium City	0.22	0.24	0.17	0.17	0.20	0.25	0.29	0.16
Large City	0.09	0.21	0.14	0.14	0.13	0.10	0.18	0.19
Respondent's Race
White	0.88	0.79	0.84	0.75	0.91	0.74	0.79	0.73
Black	0.04	0.06	0.05	0.03	0.03	0.13	0.05	0.09
Hispanic	0.03	0.08	0.02	0.08	0.03	0.06	0.05	0.06
Asian	0.05	0.05	0.04	0.12	0.00	0.04	0.07	0.09
Other Race	0.01	0.02	0.05	0.02	0.03	0.03	0.04	0.03
Mixed Race	0.13	0.15	0.15	0.11	0.07	0.19	0.14	0.08
Partner's Race
White	0.78	0.70	0.71	0.79	0.83	0.72	0.86	0.72
Black	0.07	0.15	0.08	0.05	0.03	0.06	0.04	0.01
Hispanic	0.03	0.04	0.03	0.04	0.00	0.07	0.02	0.08
Asian	0.01	0.02	0.03	0.06	0.01	0.06	0.04	0.16
Mixed Race	0.10	0.09	0.13	0.06	0.09	0.09	0.04	0.03
Other or Not Indicated	0.01	0.00	0.02	0.01	0.04	0.00	0.02	0.00
Childhood Religion
Catholic	0.31	0.29	0.27	0.32	0.25	0.39	0.29	0.34
Jewish	0.19	0.15	0.15	0.11	0.26	0.12	0.09	0.14
Other Religion	0.12	0.17	0.15	0.14	0.14	0.04	0.07	0.11
Protestant	0.10	0.16	0.18	0.18	0.09	0.17	0.18	0.24
None	0.28	0.24	0.25	0.24	0.26	0.28	0.38	0.16
Immigrant	0.05	0.12	0.04	0.08	0.06	0.10	0.11	0.06
Observations	152	114	118	140	69	69	56	79