Comparison of qualitative& quantitativeresearch approaches :Comparison of qualitative& quantitativeresearch approaches


RESEARCHER’S ACTIVITIES :RESEARCHER’S ACTIVITIES QUANTITATIVE: RESEARCHER SELECTS A REPRESENTATIVE SAMPLE & DETERMINES SIZE BEFORE COLLECTING DATA. QUALITATIVE: SHE SELECTS PARTICIPANTS WHO ARE EXPERIENCING PHENOMENON OF INTEREST COLLECTS DATA UNTIL SATURATIO IS REACHED. QUANTITATIVE: USES EXTENSIVE APPROACH TO COLLECT DATA. QUALITATIVE: USES INTENCIVE APPROACH TO COLLECT DATA. QUANTITATIVE: QUESTIONNAIRES & MEASUREMENT DEVICES ARE PREFERABLY ADMINISTERED IN ONE SETTING BY AN UN BIASED IVDIVIDUAL . QUALITATIVE: INTERVIEWS &PARTICIPANTS OR NON-PARTICIPANTS OBSERVATION IN ENVIRONMENT WHERE PARTICIPANTS USUALLY SPEND THEIR TIME. QUANTITATIVE: RELIABILITY & VALIDITY OF INSTUMENTS AND INTERNAL & EXTERNAL VALIDITY PERMIT JUDGMENTOF SCIENTIFIC RIGOR. QUALITATIVE: CREDITABILITY, AUTHENTIABILITY, FITTINGNESS, & COMFERTABILITY PERMIT JUDGMENTOF SCIENTIFIC RIGOR. QUANTITATIVE: PRIMARILY DEDUCTIVE ANALYSISIS USED. QUALITATIVE: PRIMARILY INDUCTIVE ANALYSISIS USED.


REASEARCHER’S BELIEFS :REASEARCHER’S BELIEFS QUANTITATIVE: HUMANS ARE KNOWN BY THEIR BIOLOGICAL , PSYCHOLOGICAL & SOCIAL CHARECTERISTICS. QUALITATIVE: HUMANS ARE KNOWN BY THEIR PERSONAL EXPRESSIONS. QUANTITATIVE:TRUTH IS OBJECTIVE REALITY THAT CAN BE MEASURED QUALITATIVE: THRUTH IS SUBJECTIVE EXPRESSION OF REALITY THATIS PERCIEVED BY PARTICIPANTS.


RESEARCH QUESTIONS :RESEARCH QUESTIONS QUANTITATIVE: ARE BOOMERANG PILLOWS MORE EFFECTIVE THAN STRAIGHT PILLOW IMPROVING THE RESPIRATORY CAPACITY OF HOSPITALIZD PATIENTS? QUALITATIVE: WHY DOES SOME PATIENTS COMPLENTS ABOUT BOOMERANG PILLOWS? HOW DID THE PILLOWS FEEL?


Multi-method research :Multi-method research DEFINITION:- MULTI-METHOD RESEARCH IS A BLENDING OF QUANTITATIVE & QUALITATIVE DATA WITH IN SINGLE STUDY OR COORDINATED CLUSTERS OF STUDIES.


ADVANTAGES OF MULTI-METHOD RESEARCH :ADVANTAGES OF MULTI-METHOD RESEARCH COMPLEMENTARITY: SUPPORT TO COMPLETE BY AVOIDING THE LIMITATIONS OF SINGLE METHOD. ENHANCE THEORETICAL INSIGHT: COMPLETE UNDERSTANDING OF THEORY. INCREMENTALITY: PROFITABILITY INCREASES DUE TO MULTIPLE FEEDBACK LOOPS . ENHANCE VALIDITY: SUPPORTS VALIDITY BY MULTIPLE & COMPLEMENTARY TYPES OF DATA. CREATING NEW FRONTIER: WHEN QUANTITATIVE & QUALITATIVE DATA ARE INCONSISTENT CAN PUSH A LINE OF ENQUIRY FURTHER.


RESEARCH DESIGNSOF MULTI-METHOD RESEARCH :RESEARCH DESIGNSOF MULTI-METHOD RESEARCH COMPONENT DESIGN INTEGRATED DESIGN TRIANGULATED DESIGN COMPLEMENTARITY DESIGN EXPANTION DESIGN INTEGRATIVE DESIGN EMBEDDED DESIGN HOLISTIC DESIGN TRANSFORMATIVE DESIGN


OBSTACLES TO MULTI-METHOD RESEARCH :OBSTACLES TO MULTI-METHOD RESEARCH EPISTMOLOGICAL BIASES: FOR THOSE WITH HARD LINE & PURIT VIEW,THE ASSUMPTIONS CAN NOT BE PUT IN HARMONY. COSTS: MAY FIND EXPENCIVE. RESEARCHER TRAINING: FOR DEVELOPMENT OF INVESTIGATOR’S SKILLS. ANALYTICAL CHALLENGES: COMBINING NUMERICAL & NARRATIVE DATA. PUBLICATION BIASES: SOME JOURNALS HAVE DISTINCT PREFERENCES FOR STUDIES.