Sample selecting

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Sample selecting

  1. 1. Dolly Ramos G
  2. 2. After identifying the general problem What info How to obtainYou need to select the unit of anaylisis (sample) Research and studies have numerous the researcher needs to know exactly • What to observe however •Where to observe •Whom to ask •short “sampling”
  3. 3. PS=how many and how often = QN studiesNPSor purposive /purposeful= QL studies  “are logic as long as the field were experts mainly answer QL problems” to learn the most understand Discover insight
  4. 4. In a Medical case = not any consultant is not called to provide an opinion but those who have the experience on that specific cases .Purposive or purposeful samplingLie in selecting information rich-case (IRC) those samples from which we can learn a great deal about issues of central importance to the purpose of the research
  5. 5. W id Cha range o ate es ract r cl a e f i t ssm n of in chrac Fire wn be tere nd o rs f Ra he O A re a ot st pr of ttrib g hers n t rri at ut hle e fe e o te Re am NFits the profile Ongoing/ahead Graduate ss Emerging theory
  6. 6.  Get together with your peer or peers Write down a paragraph in which it states the sample the type of sampling you will be using and how it applies to your studyType of samplingNumber of participantsWhere are they fromAge averageGenderWhy this sampling
  7. 7. There is no answerIt depends on: Questions being ask Data being gathered The analysis in the process The source you have to support the study
  8. 8. •Lincoln & Guba: Recommend sampling until a point of saturation orredundancy is reached (no new info)•Random sampling give validity to the study•Patton: specifically minimum size based reasonable coverage•Sample chosen in relevance to the research problem

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