Non Probability Sampling - 815 Words

Ans.1: Non-Probability Sampling: When the units of a sample are chosen so that each unit in the population does not have a calculable non-zero probability of being selected in the sample, this is called Non-Probability Sampling. Also, Non-probability sampling is a sampling technique where the samples are gathered in a process that does not give all the individuals in the population equal chances of being selected. In contrast with probability sampling, non-probability sample is not a product of a randomized selection processes. Subjects in a non-probability sample are usually selected on the basis of their accessibility or by the purposive personal judgment of the researcher. Scope of Non-Probability Sampling: †¢ This type of†¦show more content†¦For example, if basis of the quota is college year level and the researcher needs equal representation, with a sample size of 100, he must select 25 1st year students, another 25 2nd year students, 25 3rd year and 25 4th year students. The bases of the quota are usually age, gender, education, race, religion and socioeconomic status. 4. Judgmental Sampling: Judgmental sampling is more commonly known as purposive sampling. In this type of sampling, subjects are chosen to be part of the sample with a specific purpose in mind. With judgmental sampling, the researcher believes that some subjects are more fit for the research compared to other individuals. This is the reason why they are purposively chosen as subjects. 5. Snowball Sampling: Snowball sampling is usually done when there is a very small population size. In this type of sampling, the researcher asks the initial subject to identify another potential subject who also meets the criteria of the research. The downside of using a snowball sample is that it is hardly representative of the population. For example, if you wanted to interview a sample of vegetarians / cyclists / people with a particular disability / people who support a particular political party etc., the initial contacts may well have knowledge (through e.g. support group) ofShow MoreRelatedQuestions On Non Probability Sampling1039 Words   |  5 Pagesdefine what non-probability sampling is and the different types such as snowball sampling, quota sampling, convenience sampling and purposive sampling. In addition, the pros and cons of non-probability will be discussed such as the correct sample size, determining the desired precision, and managing the variation in the population to name a few examples. Furthermore, this journal will discuss why a researcher might want to use non-probability sampling over other methods such as cluster sampling or systematicRead MorePre Randomized Non Probability Sampling Method889 Words   |  4 Pages2. a) The study used consecutive non randomized non probability sampling method . The study selected records of patients as they were admitted in a consecutive manner until it reached a certain number. In this study, the number was 297. The study excluded 62 records that did not fit the sampling requirements. The final sample was n = 235 (Salinas et al., 2012). When using consecutive sampling techniques, the researcher includes all patients who agree to participate provided that they meet specificRead MoreImmigrants Fear of Crime and Lack of Confidence991 Words   |  4 Pageswhat should be done to analyze the level of their fear and lack of confidence. IDENTIFY PROBABILITY AND NON-PROBABILITY SAMPLING DESIGNS The illegal immigrants can be studied by applying sampling techniques. Using non-probability sampling the samples of illegal immigrants will be approached in a way that not every individual has an equal chance of being selected in the group studied. 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Humans have long practiced various forms of random selectionRead MoreBritannia Research Methodology962 Words   |  4 PagesLUCKNOW †¢ Research Design : Descriptive Research Design †¢ Sources of Information : Primary Secondary Data †¢ Data collection Method : Structured Non Disguised Question. †¢ Types of questions Used : Open Ended, Multiple Choice and Dichotomous †¢ Sampling Method : Convenience Sampling †¢ Sample Size : 100 consumers Data Sources There are several ways of collecting the appropriate data which differ considerably in context of moneyRead MoreThe Test Of Patients Admitted At The Massachusetts General Hospital ( Mgh )833 Words   |  4 Pagesa) The study used a consecutive non randomized, non-probability sampling method. The study selected records of patients admitted to the Massachusetts General Hospital (MGH) between September 1997 and August 2008 in a consecutive manner until a specific number was obtained. In this study, the number was 297. The study excluded 62 records that did not fit the sampling requirements. The final sample was n = 235 (Salinas et al., 2012). When using consecutive sampling techniques, the researcher includesRead MoreResearch Study On Data Analysis Essay1213 Words   |  5 PagesCHAPTER 3 3. METHODOLOGY 3.1 INTRODUCTION The aim of this chapter is focus on how data required for the research is to be obtained. Section 3.2 outlines the sampling techniques that can be used to choose representative respondents to the population under study. It will give a brief explanation on sampling and also explanation on various sampling techniques. Section 3.3 focuses on the data collection methods. It will give a brief explanation of various data collection methods. Section 3.4 describesRead MoreExperimental And Quasi Experimental Research Design1582 Words   |  7 Pagesmixed method (both qualitative and quantitative). Qualitative research method does not include the numbers or mathematical calculations. Qualitative research is connected with sounds, words, feelings, emotions, colors and other elements, which are non-quantifiable. The aim of the Qualitative studies is to ensure the greater level of depth of understanding (Swearengen, 2012). The qualitative data collection methods involve the interviews, question naires. Moreover, it includes the open-ended questionsRead MoreTaking a Look at Research Methodology1281 Words   |  5 Pages CHAPTER 3 RESEARCH METHODOLOGY Chapter 3 discuss about the introductory overview of research methodology. It includes the research design, sampling and location, variable measurement, data collection and data analysis method. 3.1 Research Design For this research, we are using descriptive research and quantitative research. Descriptive research is a survey which objective is to produce an accurate representation of person, event or solution (Saunders, Lewis Thornhill