Primary sources of data collection
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Primary data are those which are collected for the first time and so are in crude form. The statistics give no individual meaning or interpretation. This is called secondary data.
Key informant interviews Includes guidance on identifying key informants, choosing the type of interview, developing the interview tool, and conducting interviews. Depending on the research, these may take the form of household surveys, business firm surveys, or agricultural farm surveys. The complete collection of defined terms is available or in a that can be downloaded from the website.
Moreover, the objective and the method adopted for acquiring data may not be suitable to the current situation. Some other ways include asking respondents to fill out questionnaires, getting information from focus groups and taking measurements. Essentials of a good questionnaire — -It should be short and simple -Questions should proceed in a logical sequence -Technical terms and vague expressions must be avoided. Primary research is the process of gathering data directly from original sources as opposed to collecting information from research that others have done. For instance, if you are looking into the attractiveness of another washing machine, your target populace may be newly-weds. Focus group interviews allow the researcher to probe deeper into opinions where he needs more information. For example, Creating a vector in … Reading Data in R For reading, importing data into R following are some functions. Larger samples mean that final inference becomes much more straightforward. Primary data are always collected from the source. Secondary data offer several advantages as it is easily available, saves time and cost of the researcher. This is the main difference between Primary and Secondary data.
The Difference Between Primary and Secondary Sources of Data :: Papers - Primary data collection is quite expensive, as the research is conducted by the organisation or agency itself, which requires resources like investment and manpower.
Video: What Is Primary Data in Marketing Research. In this lesson, you'll learn what primary data is. You'll also explore sources of primary data and the collection of primary sources of data collection. An advantage of primary data is that it is specifically tailored to your research needs. A disadvantage is that it is expensive to obtain. Sources of Primary Data The source of your primary data is the population sample from which you collect the data. The first step in the process is determining your target population. For example, if you are researching the marketability of a new washing machine, your target population may be newlyweds that have just purchased a home within the last 90 days. Once you have determined your target population, you will need to decide how to represent this population in your study. Obviously, it's impracticable to collect data from everyone, so you will have to determine the sample size and the type of sample. The sample should be random and a stratified random sample is often advisable. A stratified random sample involves dividing the population to be studied into subpopulations of distinct characteristics and then drawing your random sample from each subpopulation. In our washing machine example, subpopulations may include young couples, middle-aged couples, old couples and previously married couples. Collection of Primary Data You can collect data from your sample population in different ways. Some common collection methods include: Focus Groups A focus group usually consists of a discussion among 8-12 people from your sample facilitated by a moderator. The moderator tries to encourage in-depth discussions on the product or concept that is the focus of the research. It's a flexible means of data collection that lets you get to information not easily obtained by other means. Surveys These are basically questionnaires with a set of carefully designed questions posed to your target population. Surveys can be administered by mail, telephone or by the Internet. Response rates are typically very low, so you will have to use a large sample to get sufficient responses. Interviews You may also interview people from your sample either in person or by telephone. You may start from a schedule of carefully designed questions, like in a survey, but you will have the flexibility to adapt the questions to fit the situation. Of course, a problem with this method is that the adaptability can lead to inconsistent results and interviewer bias. Experiments Sometimes you will have to perform experiments, but primary sources of data collection is typically a very costly method of obtaining data and is often used in product development. An experiment will consist of a control group and an experimental group. The control group will not receive the new product but the experimental group will. Neither the researchers nor the members of the two groups will be aware of which group is which. The experiment will test some element of the product. The easiest example would be pharmaceutical testing to determine the efficacy and safety of a new drug. Experimental design is a complex subject that we will not go into now, but only touch upon it for your future reference. Lesson Summary Primary data is information that you collect specifically for a particular research project. You need to determine your target population and the size and type of sample you will draw from the target population before you commence data collection. Primary data is often collected by means of focus groups, surveys, interviews, and experiments. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level. To learn more, visit our.
