MINISTERY OF EDUCATION OF THE REPUBLIC OF BELARUS
Belarus State Economic University
REFERAT:
”Research methods to collect primary empirical information”
Minsk 2008
Research methods are strategies or techniques to conduct a systematic research. To collect primary data four main methods are used: survey, observation, document analysis and experiment, but not any of them is adequate or best for all purposes – all should be supplemented and checked.
The most wide-spread method that provides almost 90% of empiric data is survey research. Survey is a poll in which researchers gather facts applying to respondents whose verbal statements are a source of information. Respondents are people who provide data for analysis.
The strengths of surveys are seen in the following: survey research is useful in describing the characteristics of a large population without having to interview each person in that population. It is useful in analyzing social change or documenting the existence of a social problem. It is cheap to organize and makes a maximum use of technical devices to process the obtained data.
A weakness of survey research is that quality of obtained data may be affected by a respondent’s personality – his education, culture, memory, attitudes to the study problem, on the one hand, and the researcher’s personality – his professional level, communicative skills etc., on the other hand.
Survey data are collected by using such methods as questionnaire, interviewing, sociometric survey and expert survey.
Questionnaire is a popular method of data collection with a questionnaire form as a printed research instrument containing a series of items for respondents to answer. It may be self-administered by a respondent or administered by an interviewer in face-to-face encounter or by telephone.
The advantages of questionnaire are well-known: data can be collected fast on specific items; these data can be easily transferred into forms allowing quantified and computerized analyses; the task of data collection can be delegated to less expensive field staff.
However, several problems can arise when using questionnaire. It can impose a rigid, preconceived idea of reality which may be inappropriate for the particular situation. If field enumerators are not supervised properly, errors in recording data can occur. Problems may also arise from respondents concealing, misreporting, or misunderstanding the questions.
The design and preparation of a questionnaire form are extremely important, as they will influence the type of information collected, in somewhat the same way as the mesh-size of a fish-net determines the fish that are caught.
First, the questionnaire form must be strictly designed: it begins with an introduction that should make a respondent interested in participating in the poll; so it informs him about the research aim, way of filling in, guarantees of anonymity etc. The second section is a set of pre-arranged questions. The final part contains demographic data about respondents.
Selecting and phrasing of particular questions is of utmost importance in any survey as their purpose is to discover what people know, not what they do not know. They should follow in a logical order so that the researcher can obtain maximum information, and people should be reminded of aspects on which they might comment. Sometimes it is good to start with a general question, “What do you think about X? ”followed by specific questions. Questions must be carefully phrased so that they can be understood by any respondents who belong to a certain socio-demographic group. They should fit with indigenous knowledge systems, and with local perceptions. The researcher must have enough basic knowledge of the community to know which questions would be meaningful, and how exactly they should be framed so as to minimize the possibility of creating ambiguity or embarrassment.
Besides, the questionnaire form should meet the requirements of validity and reliability. Validity is the extent to which a study or research instrument accurately measures what it is supposed to measure. Reliability is the extent to which a study or research instrument yields consistent results when applied to different individuals at one time or to the same individuals over time.
In questionnaire forms the following types of questions can be used:
· open-ended questions – when a respondent himself formulates the answer, for example, “How did you spend tonight? ”– “I went to the cinema”or “I chatted in the Internet”;
· closed questions – when a respondent is provided with some alternatives, for example, “What do you think of smoking? ”– “It’s bad for health”, “It’s a way of coming down under stress”or “I’m neutral about it”. One and the same question can be made open-ended or closed. Closed questions are easier to computerize, but they need the researcher’s comprehensive knowledge on the issue. Open-ended questions are used when this knowledge is limited;
· semi-closed questions – when a respondent is provided with alternatives and given a chance to express his own opinion on the issue. Normally it’s included as “other”followed by a space for a respondent’s comments;
· scale questions – when a respondent checks a scale (of incidence, preference, or quantity) of 0-5 (1-10 etc);
· menu questions – when a respondent can choose any combination of answers;
· alternative questions supposing to choose only “yes”or “no”answers.
Although the questionnaire ought to cover all questions needed, it should be neither too elaborate nor too long. ............