Sample size and proportion
Table
| number | Item | Black
college | White
non-college | White
college | |
| 19 | Genetic father's age at respondent's birth: | 189 =.60 | 677 =.46 | 3385 =.43 | |
| - "26-30 and under" | 313 | 1471 | 7872 | ||
| 20 | Genetic mother's age at respondent's birth: | 275=.79 | 1026=.67 | 5415=.67 | |
| 26-30 and under" | 348 | 1532 | 8082 | ||
| 28 | Respondent's age at genetic father's death: | 65=.53" | 243=.35" | 966=.42b | |
| "18 and under" | 123 | 695 | 2300 | ||
| 29 | Respondent's age at genetic mother's death: | 49=. 53b | 175 =. 37" | 663=46b | |
| "19 and under" | 93 | 472 | 1441 | ||
| 30 | Age respondent left parental home: | 104=.56b | 639= .61b | 1767=49" | |
| "21 years or under" | 186 | 1048 | 3606 | ||
| 31 | Number of siblings: | 215=.54b | 977= 55b | 6423=71" | |
| "2 and under" | 399 | 1777 | 9047 | ||
| 53 | Age at puberty (aggregate measure): | 292=73b | 1238=69b | 6970= .77" | |
| "13 years and under" | 400 | 1794 | 9052 | ||
| 69 | Estimated length of erect penis: | 105=.65b | 403=.82b | 3059=.81 | |
| Less than or equal to 6.50 inches" | 161 | 791 | 3777 | ||
| 70 | Measured length of erect penis: | 30=.51 | 86=.60.b | 1497=63" | |
| - "Less than or equal to 6.25 inches" | 59 | 143 | 2376 | ||
| 71 | Measured length of flaccid penis | 40=.68 | 126=89" | 2117=89 | |
| - "Less than or equal to 4.50 inches" | 59 | 142 | 2379 | ||
| 72 | Measured circumference of flaccid penis: | 41=70" | 104=76b | 1825=.79" | |
| "Less than or equal to 4.00 inches | 59 | 137 | 2310 | ||
| 74 | Angle of penile erection: | 102 | 450 | 3473 | |
| 164 | 585 | 4396 | |||
| - "Penis almost vertical or down from | - = .62b | =77b | = 79" | ||
| vertical as much as ... 85"b | |||||
| 90 | Average length of menstrual cycle: | 129 | 428 | 1983 | |
| "28 days or less" | 155 | 595 | 2916 | ||
| =.83" | =72" | =.68b | |||
| 91 | Average length of menstrual flow: | 80 | 230 | 1044 | |
| 148 | 574 | 2983 | |||
| "4 days or under" | =54" | =40h | =35b | ||
| . | |||||
| 99 | Periodicity of female sexual response: | 36 | 153 | 710 | |
| 173 | 767 | 2839 | |||
| "No periodicity" | =21 | =20b | = .25b | ||
| 100 | Age hymen broken: | 67 | 175 | 414 | |
| 126 | 546 | 1594 | |||
| - "18 years or under" | =53" | =32" | .=26b | ||
| 135 | Incidence of prepubertal heterosexual | 116 | 215 | 814 | |
| techniques: | 400 | 1789 | 9045 | ||
| "Coitus" | =.29"- | =.12 | =.09 | ||
| 183 | Reason for worry about masturbation: | 13 | 56 | 390 | |
| "Moral (guilt, shame)" | 41 | 206 | 1027 | ||
| =.32" | =. 27" | =.38" | |||
| 199 | Age of first premarital petting: | 241 | 931 | 3929 | |
| - " 15 years and under" | 388 | . 1663 | 8731 | ||
| =.62" | =.56" | =.45b | |||
| 218 | Age first postpubertal coitus: | 171 | 514 | 1186 | |
| 17 years and tinder" | 335 | 1286 | 5651 | ||
| =.5 1 | =.40b | .=.21b | |||
| 227 | Intention to have premarital coitus: | 81 | 654 | 3509 | |
| 368 | 1487 | 7311 | |||
| "No intention" | =.22" | =.44b | =.48b | ||
| 228 | Moral restraint on premarital coitus: | 195 | 993 | 5926 | |
| "Much" | 397 | 1655 | 8845 | ||
| =.49" | =.60b | =.67b | |||
| 239 | Number of premarital coital companions: | 169 | 550 | 3068 | |
| - "5 partners or fewer" | 307 | 786 | 4202 | ||
| =.55b | = 70b | = 73b | |||
| 268 | Incidence and type of nonmarital | 102 | 665 | 3938 | |
| pregnancy: | 310 | 864 | 4633 | ||
| - "Never" | = .68b | =.77" | = .85, | ||
| 291 | Duration of first marriage: | 93 | 326 | 1446 | |
| 176 | 1053 | 3443 | |||
| - = .53b | =.31" | =. 42b | |||
| -"Under 5 years" | |||||
| 297 | Time elapsed between marriage and first | 53 | 428 | 1108 | |
| marital coitus in first marriage: | 67 | 620 | 1705 | ||
| "One day or less" | =. 79b | =.69b | = 65b | ||
| 301 | Time before first birth in first marriage: | 14 | 86 | 218 | |
| - 62 | 574 | 1815 | |||
| - "9-11 months" | =.23" | =.15 | =.12 | ||
| 308 | Clarity of contraceptive data for first | 25 | 147 | 172 | |
| marriage: | 176 | 1051 | 3432 | ||
| - "Clearly none used in this marriage" | =.14b | =.14b | =.05" | ||
| 322 | Frequency of cunnilingus in foreplay in first | 139 | 636 | 1576 | |
| marriage: | 174 | 1043 | 3426 | ||
| - "None" | =.801, | =.61" | =.46b | ||
| 323 | Frequency of fellatio in foreplay in first | 146 | 679 | 1710 | |
| marriage: | 174 | 1044 | 3420 | ||
| None" | =.84" | =.65" | =.50b | ||
| 324 | Time between intromission and ejaculation | 89 | 675 | 2057 | |
| in coitus in first marriage: | 158 | 951 | 3164 | ||
| - "<6 minutes" | =.56 | =.71 | =.65 | ||
| 326 | Frequency (mean) per week of marital
coitus in first marriage- "Age 21-25" | 3.83 | : 3.32 | 3.11 | |
| 327 | Maximum frequency of marital coitus in | 110 | 616 | 2043 | |
| first marriage | 167 | : 934 | 3349 | ||
| - "7 per/week or less" | =.66b. | =.66b | = . 61" | ||
| 329 | Frequency of positions in coitus in first | 16 | 134 | 546 | |
| 172 | 1033 | 3415 | |||
| marriage: female above, male supine: | =.09" | =.13b | =.16" | ||
| - "Much" | |||||
| 340 | Average number of wife's orgasms per act | 23 | 92 | 304 | |
| 173 | 1026 | 3376 | |||
| of coitus in first marriage: | - =.091, | =.13" | =.16 | ||
| 342 | Incidence of extramarital sexual activity in | 31 | 390 | 1047 | |
| first marriage: | 175 | 1053 | 3439 | ||
| - "None" | =.17" | =.37b | =.30b | ||
| 348 | Year of first marriage in which first extra | 40 | 112 | 199 | |
| marital coitus occurred: | 78 | 448 | 867 | ||
| - "Within first 2 years" | =.51" | =.25" | =.23" | ||
| 351 | Number of extramarital companions during | 93 | 763 | 2573 | |
| first marriage: | 173 | 1045 | 3431 | ||
| - "Zero" | =.54" | =.73b | =.75" | ||
| 355 | Expectation of future extramarital coitus: | 50 | 445 | 1751 | |
| "Will not have" | 131 | 695 | 2779 | ||
| .38" | 64b | 63" | |||
| 367 | Incidence of sexual contact with | 96 | 506 | 3285 | |
| prostitutes: | 177 | 766 | 4693 | ||
| - "Never" | =.54b | =.66h | =.70b | ||
| 374 | Incidence of fellatio with prostitutes: | 44 | 116 | 605 | |
| "Never" | 70 | 228 | 1164 | ||
| =.63b | =.51 | =.52b | |||