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Getting a high response rate of sexual behavior survey among the general population in Japan : three different methods of survey on sexual behavior . The purpose of this study was to specify the most accurate , reliable and valid technique for a general sexual behavioral survey in Japan . This pilot study was conducted to assure a high response rate and to keep respondents ' privacy confidential by using an anonymous questionnaire survey technique . The sample ( 360 potential respondents ) was selected randomly from basic resident registers in two geographically different areas . From the registries , 90 residents , aged 20 to 49 years old , were randomly selected to represent each sex from each area . The subjects were randomly assigned to three groups each having a different procedure of requesting the completion of the survey and providing the questionnaires : ( 1 ) Postal Group , ( 2 ) Telephone Group , and ( 3 ) Face-to-face Group . The survey was carried out from October 1995 to February 1996 . Effective response rates for the above mentioned three groups were 69.2 % , 69.2 % and 55.8 % , respectively . It is difficult to determine the best method when only considering the effective response rates . However , judging from our effort and expense , the mail survey is the best possible procedure and would be a reasonable method for a national sexual behavior survey .
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Intervention_Other
Postal Group
872
Intervention_Other
Telephone Group
873
Intervention_Other
Face-to-face Group
874
Intervention_Other
mail survey
875
Outcome_Other
Effective response rates
876
Outcome_Other
effective response rates
877
Outcome_Physical
.
878
Participant_Sample-size
360 potential respondents
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Participant_Sample-size
90 residents