University of Tokyo

Abstract
Survey Number 1016
Survey Title 6th Nationwide Survey of Sexual Behavior among Young People (JASE SSJDA edition), 2005
Depositor Seishonen no seikoudou zenkoku chosa kenkyukai
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Educational Purpose Available for both research and instructional purposes.
Period of Data Use Permission One year
Access to Datasets Download
Nesstar Not available
Summary This is the sixth “Survey of Sexual Behavior among Young People” conducted by the Japanese Association for Sex Education; this survey has previously been conducted five times, in 1974, 1981, 1987, 1993, and 1999.

The purpose of this survey is as follows.
(1) To clarify the progress status of the age of having sexual experience of Japanese youth, and its changes over time, in terms of physiological, psychological, and behavioral aspects.
(2) To clarify the actual state of consciousness concerning sexual activity of young adults and to examine the relationship between individual differences in sexual experience, social background, etc.
(3) To clarify the realities of sex-related crimes, etc.
(4) To clarify the effect of information flow, such as mobile phones and the Internet, on young adults.
Data Type quantitative research
quantitative research: micro data
Universe Male and female students from first year of junior high school to fourth year of university
Unit of Observation Individual
Sample Size Sample size: 5,510 people (2,755 boys, 2,755 girls)
A sample of 5,510 responses for analysis was extracted from the responses collected from 12 locations in Japan, using a random sampling method with quotas allocated on the basis of region, school type, year level, and gender, taking into account the distribution of the student population nationwide.
Date of Collection 2005-11 ~ 2006-03
November 2005 – March 2006
Time Period 2005 ~ 2006
Spatial Unit hokkaido
tokyo
kyoto
fukuoka
akita
shizuoka
shimane
kumamoto
miyagi
tochigi
niigata
kochi
12 locations in Japan
Four large cities with populations in excess of one million (Sapporo City, Tokyo Metropolis, Kyoto City, Kitakyushu City), four medium-sized cities (Akita, Shizuoka, Matsue, Kumamoto Cities), four small municipalities (Miyagi, Tochigi, Niigata, Kochi Prefectures)
Sampling Procedure Probability: Stratified
Probability: Multistage
Stratified three-stage sampling method
[Junior high school and high school students]
A total of 22 junior high schools and 22 high schools in the survey sites were selected taking into account region size, school type, student population, etc., and classes from each year level in these schools were selected to take the survey following discussion with the school and obtainment of consent.

[Specialized training college and university students]
50 universities and two specialized training colleges were selected, taking into consideration school type, etc., in four large cities and four medium-sized cities from the survey sites.
Mode of Data Collection Self-administered questionnaire: Paper
[Junior high school and high school students]
Collective survey (self-administered)
[Specialized training college and university students]
In principle, classroom teachers were engaged to distribute the questionnaire sheets contained in return envelopes and explain the purposes of the survey. Students agreeing to participate in the survey filled out the questionnaire at home and returned it by postal mail.
Investigator Seishonen no seikoudou zenkoku chosa kenkyukai, survey carried out by JASE(The Japanese Association for Sex Education)
DOI 10.34500/SSJDA.1016
Sponsors (Funds)
Related Publications (by the Investigator) Questionnaire
Related Publications (based on Secondary Analysis) List of related publications (based on Secondary Analysis)
Documentation
Major Survey Items [Face Items]
Age, gender, school (except for junior high school students), year in school, impression of school classes, cohabitants (except for junior high school students), time spent on part-time (arubaito) jobs (except for junior high school students), existence of a car/motorcycle/moped respondent uses exclusively (except for junior high school students), presence of own room, feelings of self-esteem (I have a lot of good qualities/I am generally satisfied with myself), time use on days off and holidays (study, housework, Internet, etc.)

(1) Sexual experience/sexual behavior
- Ejaculation/menstruation
Whether or not experienced, age of first experience

- Sexual interest
Whether or not experienced, age of first experience

- Dating experience
Whether or not experienced, age of first experience, current situation, initiating and bearing the costs of dating

- Kissing experience
Whether or not experienced, age of first experience, initiating kissing, motivation

- Sexual intercourse experience
Whether or not experienced, age of first experience, partner’s age (older or younger), initiating sexual intercourse, motivation (except for junior high school students), how it felt (except for junior high school students)/reason (except for junior high school students), use of contraception (except for junior high school students), number of people respondent has had sexual intercourse with (except for junior high school students), whether or not dating someone (except for junior high school students), presence of a sexual partner

- Concerns about sexually transmitted diseases and pregnancy (except for junior high school students)
Concerns about the possibility of pregnancy, whether respondent can communicate with a partner about not wanting to have sexual intercourse, use of contraception, contraceptive method, use of condoms, whether respondent talks to a partner about contraception, reason for not using contraception

- Masturbation experience
Whether or not experienced, age of first experience

(2) Sexual norms/sexual consciousness
- Impression of sex
Impression of the word “sex” and “sexual intercourse”

- Gender consciousness
View of marriage, consciousness of gender roles, consciousness of sexual differences

- Sexual norms (except for junior high school students)
Loveless sexual intercourse, sexual intercourse involving exchange of money, sex with people other than boyfriend/girlfriend, sexual intercourse with someone just met, sexual acts with people of the same sex, abortion, marriage due to pregnancy

(3) Sexual misconduct
Violence in dating (except for junior high school students), sexual harassment (whether or not experienced, person who did it)

(4) Sex education and sexual knowledge/information
- Sex education
Items respondent learned in school sex education, evaluation of sex education (whether respondent felt it was useful)

- Interest in sex knowledge
Things respondent wants to know about sex

- Source of information on sex
About appropriate conduct between men and women/sexual intercourse/contraceptive methods (influence of friends/school/teachers/media, etc.)

- Knowledge of sex (except for junior high school students)
Knowledge of contraception and sexually transmitted diseases

(5) Friendships
Impression of friendships at school, frequency of going to the city to have fun with friends and boyfriend/girlfriend, presence of a friend of the same sex/opposite sex that respondent talks to frequently, whether or not dating/having sex with someone, current situation, interest in the sex experiences of friends, level of conversation about sex

(6) Family relationship
Image of household, parents’ occupation, frequency of conversing with parents, composition of siblings

(7) Media usage
Frequency of sending text messages to friends and boyfriend/girlfriend, whether respondent has own TV/video player/personal computer, frequency of mobile phone use, Internet usage

*For details of survey items, please refer to the questionnaire
Date of Release 2015/05/26
Topics in CESSDA Click here for details

Compulsory and pre-school education
Higher and further education
Reproductive health
Youth
Topics in SSJDA Society/Culture
Version 1 : 2015-05-26
Notes for Users Variable and value labels are written in Japanese.