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Sample Ad Sampling In Research - Mwita Mginga - 06-12-2017 SAMPLE AND SAMPLING Sampling is a process of selecting few elements to represent the rate of population in a particular problem during a research Sample is the items selected from the given population to represent them during a research TYPES OF SAMPLING There are two main types of sampling Probability sampling Non-probability sampling Probability sampling.This is the type of sampling whereby each individual have equal chance of being selected to represent others problems during a research Non-probability sampling. This is the type of sampling whereby not each individual have equal chance of being selected to represent others . for example only top ten students in examination can be selected to represent their fellows TYPES OF PROBABILITY SAMPLING Systematic sampling Random sampling Stratified sampling TYPES OF NON-PROBABILITY SAMPLING Multiphase Sampling Purposive sampling Multistage sampling CRITERIA OF A GOOD RESEARCH • Any good research should have the following criteria • Research should be logical • Should be empirical • Should be objective and not subjective • Should be suggestive. Suggest the measure be taken in the coming problems PROBLEMS HINDERING DATA COLLECTION IN THE FIELD When collecting data in the field researcher encounter various problems Time consuming Lack of cooperation from respondents Inaccessible areas Inadequate source of data Lack of access to strictly confidential information Language barriers Poor transport network Tropical diseases may affect the researcher Climatic condition may be extremely hot or cold RE: Sample Ad Sampling In Research - Damian - 06-13-2017 Thank for share your knowledge |