This study used a structured questionnaire derived from the literature and employing a mail survey to collect responses form a group of 569 ISO 14001 certified firms in Malaysia.
We used a structured questionnaire including conjoint analysis and a fractional factorial experimental design to assess preventive HIV vaccine acceptability and risk compensation among 255 high-risk men who have sex with men (MSM) and transgenders (mean age = 26.6 years).
Interviewers visiting households used a structured questionnaire.
We used a structured questionnaire to collect data, we can't know in detail the headache profile before, then it is difficult for us to judge what types of headache the chronic daily headache was transformed from, so we cannot distinguish the chronic migraine from chronic tension-type headache.
Interviews with 110 used a structured questionnaire, and the binary probit model was used to explain the probability of pastoralist migration from volatile areas to safer areas, while ordinary least squares (OLS) was used to explain its effects on herd size.
During the second phase of the study, the two researchers used a structured questionnaire to investigate the testing practices of 12 EFL/ESL examination boards, touching upon such areas as test syllabus, test construction, validation, administration, marking, reports and post hoc analyses, and test revision.
