Validity and reliability of qualitative research有效性和可靠性的定性研究.pptVIP

The Validity and Reliability of Qualitative Research Training Overview Section 1: Philosophical Orientation: Getting in the Right Mindset Section 2: Enhancing the Validity of Qualitative Research Section 3: Enhancing the Reliability of Qualitative Research Section 4: Applications of Qualitative Research Design Section 5: Group Work to Apply Learning Section 1 Philosophical Orientation Quantitative and Qualitative Paradigms Contrasted Quantitative Research is … Fundamentally an inferential enterprise that seeks to uncover universal principles Philosophically and methodologically built or designed around the ability to infer from a sample to a larger population Quantitative and Qualitative Paradigms Contrasted Qualitative Research is … Fundamentally an interpretive enterprise that is context-dependent Philosophically and methodologically built or designed around the ability to interpret (comprehend/understand) a phenomenon from an emic (insider), as well as an etic (outsider) perspective This inter-subjective (i.e., shared) understanding serves as a proxy for “objectivity” Implications for Research Questions A client wants to know about how well a program is working for youth: Quantitative Research Questions (descriptive, explanatory -inferential) Qualitative Research Questions (descriptive, explanatory -interpretive) Implications for Sampling Sampling Strategies used in Quantitative Research: Obtaining a random or representative sample (based on probabilities) Permits the researcher to infer from a segment of the population (from which it is more feasible to collect data) to a larger population Implications for Sampling Sampling Strategies used in Qualitative Research: Purposive sampling (to ensure that the researcher has adequately understood the variation in the phenomena of interest) Theoretical sampling (to test developing ideas about a setting by selecting phenomena that are crucial to the validity of those ideas) E